Wehave 28 reviews of Lenovo ThinkPad T420 and the average score is 82%. View all reviews, videos, ratings and awards for lenovothinkpadt420. TestSeek is an independent and unbiased review aggregator, it is our mission to collect all expert reviews and calculate an average rating for each product. TechRadar Verdict Pros +Excellent performance+Great keyboard+Good build quality+Sharp screen+160GB SSD Cons -Price-Battery life-Gets quite hot Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test. In a nutshell, the Lenovo ThinkPad T420s is a powerful business portable that's a pleasure to use, but not exactly a looker. With its contourless, black plastic body and sharp edges, it looks like it has climbed straight out of the it up and things improve. The inside is still black, but there's a large keyboard, a host of function buttons which adorn the top, and a large textured track pad. The focus is on usability, so the mouse pad has two sets of buttons, two above and two below. It's also light at keyboard is extremely comfortable to use. It's easy to really get to grips with and we were firing out long documents without mistakes after a few hours. The cushioning on the keys is incredible, and it feels the closest to a proper keyboard we've seen on a track pad feels natural to use, and we reserve special praise for Lenovo for keeping the mouse buttons basic and functional. The screen is a matte-finished 1,600 x 900 panel, which is packed into the 14-inch frame. It's a great non-reflective panel that's ideal for working outside and in direct sunshine. What's more, it's really sharp, if a little pale, so you can still enjoy a movie on long business trips, even if it's not a great media laptop for the the powerInside the Lenovo ThinkPad 420s is plenty of power, which makes this a business laptop suited to people who need real grunt for demanding applications. The Intel Core i7 2640M is clocked at a whopping making it one of the most powerful processors in Intel's Sandy Bridge our lab tests, the T420s flew, topping out with a score of 11700, which is nearing gaming PC performance. This means you can run the most demanding programs, multitask demanding applications, while simultaneously surfing the web and transferring large files. If you're the kind of person whose toolbar is packed with tabs, you need this level of computing the T420s has 4GB of RAM, which is standard for modern laptops, and a 160GB SSD drive. SSD drives help the system feel responsive, start faster and are less prone to failures, which can be devastating. Normally these drives come in 120GB iterations, so it's great to see a bigger 160GB drive, which means you'll have more space for apps and life 125 minutesCinebench 117753DMark 2006 3800Despite all the praise, it's not all good for the Lenovo. There's a definite heat issue and battery life is also disappointing - you'd be lucky to get three hours office use away from the final issue is the price just over £1,500 is a serious outlay. While you do get top quality, you can get more for less. If you need a good business laptop, features such as encryption, fingerprint scanner and added security levels make it worth it. But if you're just looking for a powerful home laptop, the Asus X54E will serve you much better. Most Popular
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Lenovo ThinkPad T420s MSRP $ “The LenovoT420s is an excellent laptop for business users, and also well worth the consideration of consumers who prefer an excellent keyboard and durable design to flashy aesthetics.” Pros Durable construction High-resolution display Excellent performance Reasonable price Cons Not particularly thin or light Lackluster battery life Display isn’t great for multimedia The ThinkPad T Series is an elder among laptops. IBM introduced the first laptop in the line, the T20, about 12 years ago. Since then the series has been consistently updated and has never once been removed from the market. Only the ThinkPad X Series has enjoyed a similar tenure. IBM’s original T20 was offered only with a display, but over the years the line has expanded. High performance and variants were made available. More recently, Lenovo decided to spin off a thinner, lighter version — resulting in the T420s. Though this is the thin-and-light version of the T420, don’t mistake it for an Ultrabook. The display and maximum thickness of just over one inch seemed modern when the original T400s arrived in 2009, but today it’s merely average. It does allow for a standard Core i5-2520M processor, however, which means performance should be much better than what is provided by today’s thinnest laptops. Lenovo is debuting an Ultrabook version of the T-Series, called the T430u, later this year. Which raises the question Is the T420s a good choice, or is this thin and light losing ground to more modern designs? Let’s find out. Video overview Still in black When Lenovo took over the ThinkPad line from IBM there was widespread fear that the brand would be watered down. Instead, the company has remained shockingly stubborn. This T420s is thin, but its appearance is otherwise not much different than the laptops made ten years ago. From an aesthetic standpoint the use of matte black is a terrible choice, but that’s not the point. Functionality is the focus here. The expanses of non-gloss material ensure that fingerprints are rarely an issue. Dings and scratches also tend to be obscured. While a shiny new consumer laptop may look worse for wear a few years down the road, this laptop will display its scars with pride. The T420s’ designation as a thinner version of the T420 is literal. We’ve had the chance to see both, and the design elements are the same right down to the size of the display bezel, the hinges used and the location of the latch yes, this laptop has a display latch, a feature long gone from consumer products. Connectivity is the only major change. Due to its thinner profile this laptop offers only three USB ports, DisplayPort, VGA, Ethernet and a card reader. That’s down a couple ports to the normal T420, but it’s also much better than what is provided by most laptops of similar size. Better still, the ports are mostly along the rear of the laptop. That’s beneficial because it means peripheral cords are less likely to get in your way. Old-school keyboard Similarities between the T420 and T420s continue with the user interface. The keyboards on both appear to be identical, which means that the thinner model has the same excellent key feel. While most of the competitions — including HP’s own business-oriented Elitebooks — have transitioned over to island-style keyboards, Lenovo has continued on with beveled keys. The result is not as visually attractive, but we think this design is better for high-speed touch typing. Users new to the ThinkPad brand will undoubtedly be tripped up by the location of the function key, which is located where the Ctrl key is on every other keyboard ever produced. This strange layout has been used for years, so it’s unlikely to be changed soon. On the other hand, the T420s offers dedicated buttons for speaker mute, microphone mute and volume as well as double-sized Escape and Delete keys. These enhancements more than make up for the layout’s other oddities. The touchpad is extremely small for a laptop of this size. It’s obvious that you’re expected to use the trackpointer a little red pointing stick in the middle of the keyboard instead. Users who’ve never tackled a trackpointer before are bound to be confused by it, but there are benefits. Once you’ve become accustomed to it you can navigate via mouse without lifting your hands from the keyboard. Great for business, OK for entertainment The T420s is a business laptop, and as such it comes with a matte display, making it possible to use the laptop in many different environments. Even outdoors use is possible with the display’s brightness turned to maximum. Usually the downside to a matte display is less-than-stellar performance in movies and games, and that’s certainly the case here. You don’t get the “pop” of vibrant colors that you receive from a decent glossy laptop display. Performance in movies and games is still adequate, however — and better than matte displays we’ve seen in the past. Part of the reason for this may be the resolution of 1600x 900, which is high for a display. Audio quality has never been a focus of the ThinkPad brand, but the sound the 420s emits is surprisingly adequate. It has all the typical laptop issues with bass and distortion, but maximum volume is sufficiently loud and clear. Cool and quiet At idle, the fan of the T420s isn’t audible. At load, the fan spins up a bit, but still remains quiet. This is one of the least audible cooling systems that we’ve ever heard. You’d think that the low fan speed would result in warm operation, but that’s not the case. At idle most of the laptop’s surfaces are between 70 degrees and 80 degrees Fahrenheit, which is just barely above room temperature. Placing the laptop under load with a stress test did raise temperatures, but almost all surfaces remained under 90 degrees. The only potential source of discomfort is the left rear bottom of the laptop, which is where the exhaust is located. Temperatures here reached 103 degrees, which means that lap use could be uncomfortable if the processor is heavily stressed. That battery goes where? Though built to be thin and light, the T420s isn’t the most portable laptop around. Its 14-inch display puts it at a disadvantage compared to or laptop. The laptop’s weight of about pounds is far from classleading, as well. With that said, the T420s is reasonably small. It will fit in most bags that accommodate a laptop and is light enough to tote around on a regular basis. All ThinkPad T420s laptops come with a standard six-cell battery. In our Battery Eater’s Standard Test it lasted just one hour and nine minutes, but in the Reader’s Test is lasted a reasonable five hours and thirty two minutes. Typical mobile use will result in between four and five hours of endurance. That’s not bad, but it’s not great, either. If you need more life you can buy a three-cell bay battery for $120. This battery replaces the optical drive, which slides out using a fool-proof latch system. With the extended life battery installed, life in the Battery Eater Standard Test goes up to two hours and ten minutes and the Reader’s Test is extended to an impressive eight hours and thirty nine minutes. There’s an optional nine-cell battery for people who need even more life, but it was not provided with our review unit. Software As with other ThinkPads, our T420s came with Lenovo’s bundled ThinkVantage software. It includes a wide variety of software such as ThinkVantage Connections, which is a replacement to the standard Windows wireless manager. Unlike most such bundled solutions, the software offered by Lenovo is actually better than the standard Windows solution. This is also true for the Power Manager. Not everything about the included software is great, however. Lenovo includes advertisements for other ThinkVantage services in portions of the bundled software interface by default, which is annoying. In addition, the Virus Protection section recommends Norton Internet Security. It’d be more useful to recommend Microsoft’s free Security Essentials software. Strong performance Though thin, the T420s is not so thin that it prevents the use of normal Core i5 processors. That’s a major advantage older and thicker ultraportables have over newer Ultrabooks, and its shows in the performance numbers. SiSoft Sandra’s Processor Arithmetic test achieved a combined score of which sets a new record among the laptops we’ve reviewed. The 7-Zip score of 8,247 MIPS is also the highest we’ve yet recorded. Considering the strong processor performance, the score of 2,358 returned by PCMark 7 seems low. The reason for this, as mentioned in other reviews, is that PCMark 7 heavily favors solid state drives. If we take laptops equipped with SSDs out of the running the score of 2,358 is strong. Only the HP Envy 15 scored higher. Nvidia NVS 4200M discrete graphics can be had as an option, but our review unit did not come equipped with it. Instead it relies on Intel’s HD 3000, which can’t run 3DMark 11. 3DMark 06 returned a score of 3,701, which is a bit low for a laptop of this configuration. Combine this with a 1600 x 900 display and you have recipe for terrible gaming performance. Even older 3D games will need to be played with many detail options turned off. No one has ever mistaken a ThinkPad for a gaming laptop, however, so the lack of 3D gaming prowess isn’t a problem. Overall performance from the T420s is extremely strong, held back only by the mechanical hard drive. Solid state drives are available as an option. We highly recommend them if you’re interested in maximum performance. Conclusion The ThinkPad T420s is another example of Lenovo’s stubbornness. Besides the hardware, which is quick, there’s nothing about this laptop that is particularly modern. The entire design philosophy, from the boring matte black surfaces to the beveled key caps, could easily be at home on a laptop built five years ago. But being stubborn isn’t bad when you have it right. This is a laptop built for people who use their laptops for work every day, and for that use the T420s is perfect. It’s simply a miniaturized version of the T420, offering the same performance in a more portable package. While the T420 might be used around an office, the T420s can be taken nearly anywhere. You might expect to pay a higher price for the slimmer chassis, but that doesn’t seem to be the case. Right now our review unit can be yours for just $999, while a similar T420 is $949. That’s not much of a difference. The only weakness of the T420s is battery life. It’s not terrible, but it’s a little below average for a modern ultraportable. The included three-cell extended battery does extend life, but it requires the removal of the optical drive and is an additional cost. It’d be nice if this laptop managed six or seven hours in real-world use without additional juice. One minor disadvantage can’t spoil this party, however. The T420s is an excellent laptop for business users, and also well worth the consideration of consumers who prefer an excellent keyboard and durable design to flashy aesthetics. Highs Durable construction High-resolution display Excellent performance Reasonable price Lows Not particularly thin or light Lackluster battery life Display isn’t great for multimedia Editors' Recommendations The best Lenovo laptops for 2023 ThinkPad, Yoga, and more Best Lenovo Laptop Deals Save up to $2,287 today Asus Zenbook Fold 17 vs. Lenovo ThinkPad X1 Fold Gen 2 foldable fun IdeaPad vs. Yoga vs. Slim vs. ThinkPad vs. ThinkBook vs. Legion Lenovo brands, explained Lenovo teams up with AMD and Nvidia to release two new workstations
Ina nutshell, the Lenovo ThinkPad T420s is a powerful business portable that's a pleasure to use, but it's not exactly a looker.
Business class. The ThinkPad T420s is mainly to convince business customers of its advantages as a powerful and yet portable companion. Equipped with a Core i7-2640M and a fast SSD from Intel as well as built-in UMTS, Lenovo has created good prerequisites for this another notebook range in the business sector enjoys such a high reputation as the ThinkPad models from Lenovo. The greatest robustness, high performance hardware and long battery runtimes are the qualities that let the manufacturer of the T series especially stand the following, we will examine to what extent the ThinkPad 420s can keep these promises. The T420s is a lot lighter and compacter than the previously reviewed T420 despite the same 14 inch size. However, it also has to manage with a smaller 44 Wh battery. While the immediate predecessor of the T410s still had processors from the Arrandale generation, the latest Sandy Bridge generation is now used. Our test device has been given the name ThinkPad T420s 4174-PEG NV8PEGE and represents the top model of the series. Lenovo hasn't made cutbacks in configuration and installs a Core i7-2640M and a fast 160 GB SSD from Intel. The HD Graphics 3000 integrated in the processor is additionally backed by a dedicated Nvidia Quadro NVS 4200M with Optimus support. The entry level models however don't have this feature. The manufacturer only skimps in view of the memory configuration and equips the nearly 1800€ notebook with only 4 competition in the battle for the favor of financially strong corporate customers is enormous. The ThinkPad T420s has to face devices like the Dell Latitude E6420, as well as the HP EliteBook 8460p. Our comprehensive review is to clarify if Lenovo can ultimately keep the T420s looks considerably slimmer and less unwieldy than its otherwise largely identical brother, T420. This is due to a weight of about kg and an overall height reduction of about centimeters. Lenovo has also maintained the classic ThinkPad design in the newest scion of its notebook range. Its appearance is dominated by plain but extremely robust, black plastic, reinforced with carbon fiber and magnesium, as in the past. The manufacturing quality is almost immaculate. We couldn't find any irregular gaps or deficient material transitions. The case only responds to very high force with marginal warping. We would only have liked to see a somewhat higher stability above the DVD drive. But the given level is exceptionally good. The torsional stiffness of the display and chassis is also impressive despite the low thickness. Regardless of all good qualities, we noticed that there is still room for improvements. The stability and quality of a MacBook Pro case, milled from aluminum, is yet unreached. That would also look good on the T420s. The aluminum display hinges make a very high-end impression. They allow the notebook to be opened to 180 degrees. Moreover, they keep the lid in place without prolonged shaking on shaky surfaces. Nevertheless, Lenovo has accomplished pulling the hinges only so tight that the notebook can be opened and closed with one hand. The display's clamshell design, known from other ThinkPads, prevents foreign objects and dust from unintentionally penetrating the gap between the keyboard and screen. Since the display overlaps the case, damages can successfully be prevented. The chassis's diet didn't go without affecting the T420s' connectivity. Only three USB ports have now found room on the case. That is two less than on the T420. In return, one of them is USB compatible and another has an always-on function. External monitors or projectors can either be connected over VGA or DisplayPort. On the other hand, Lenovo has left out HDMI which sooner used in the private customer sector. While Gigabit LAN, a 4in1 card reader SD/SDHC/SDXC/MMC and a combined headphone and microphone jack are still available, the combined eSATA/USB port has been omitted in the T420s. Additional interfaces can be added via an optionally available docking station. Only little has changed in view of interface distribution. All interfaces that are primarily needed for stationary use are found on the rear. That effectively counteracts the cable mess on the desk. Users who simply want to quickly connect a USB flash drive, a memory card or a headset can continue to do so on the device's left. Lenovo has also taken care to place all ports far enough apart so that even protruding plugs won't obstruct any neighboring interfaces. The notebook has a MP webcam with an average quality for video conferences. Audio is recorded via an array microphone and can convince with a clear and well-to-understand recordings. The so-called ThinkLight is a nice gadget. It's a small LED light beside the webcam that is to facilitate the T420s' use in dark surroundings. As a business laptop, the T420s can also serve with more features There is a Kensington Lock to protect the device against theft and the built-in fingerprint reader can be used for securing the stored data. The corresponding software is included in the preinstalled ThinkVantage Display lock Left Vent, USB audio, card reader Rear Power socket, LAN, USB always-on USB DisplayPort, VGA, vent Right WLAN slider, DVD burner, Kensington LockCommunication The T420s almost leaves nothing to be desired in our configuration. The Intel Centrino Ultimate-N 6300 module supports all current WLAN standards up to and also transmits in the 5 GHz network. Three antennas ensure an extremely stable connection even in cases of weak wireless signals. A Centrino Advanced-N 6250 with WiMAX support is alternately version takes care of data sharing with smartphones or other mobile devices in all models. Optionally available, and also installed in our test device, is a WWAN module Ericsson F5521gw which is capable of GPS and UMTS, including high-speed data transmission via HSPA+. The user can achieve gross data speeds of up to 21 MB/s in download and MB/s in upload with the right rate. The SIM card slot is hidden in the battery compartment, as in the ToolboxSupplies Lenovo doesn't include anything more than a quick start guide, the power adapter and the battery. Neither a driver nor a recovery CD is found. However, the user can create these from the backup partition of the T420s. Of course, all drivers and the ThinkVantage Toolbox are preinstalled in state of delivery. Warranty While American customers only receive a one year warranty ex-factory, all German devices have a 3 year onsite manufacturer the T410s or the T420, the tested T420s has the same combination of keyboard, touchpad and trackpoint. We will briefly summarize the most important qualities here. Keyboard The ThinkPad's keyboard bids high typing comfort, even for longer texts, with its firm and clear pressure point, its generous key drop for a laptop and the agreeably shaped keys. Yielding doesn't become evident even under high pressure at all; however the noise level could be a bit lower. The user is sufficiently compensated for this by an impression of an accurate, mechanical quality with every pressed key. The swapped position of FN and the left CRTL key may irritate the user at the beginning - a peculiarity that ThinkPads have had for years. Trackpoint Also unusual for a few, but a welcome tradition for the series, is the red trackpoint in the keyboard's lower center. After some getting used to, the user won't want to live without it because it allows just as a precise as fast control of the mouse cursor. Lenovo has given the trackpoint two dedicated mouse keys and a mouse wheel replacement located directly beneath the space bar. Thus, the user doesn't have to stretch his fingers up to the touchpad's keys beneath it. The click noise is very pleasant and quiet without lacking precision. Touchpad The touchpad's surface has a rough and distinctly different feel than the rest of the surrounding case. The finger glides pleasantly and smoothly over it and can control the mouse cursor with great accuracy. Multitouch gestures are supported, but it lessens the space on the already small touchpad gets even more. The corresponding buttons do their job quietly and reliably. However, they couldn't quite keep up with the quality of the other input devices and make a somewhat flimsy impression. It's possible to switch between the trackpoint and the touchpad via the key combination FN+F8. Both inputs can also be used uses a non-glare WXGA++ screen in all ThinkPads of the T420s range. The 1610 format of the T410s' predecessor had to make way for a wider 169 aspect ratio. Consequently, the former resolution of 1440x900 has increased to 1600x900 pixels. Together with a diagonal of inches, this results in an extremely high pixel density of 131 dpi. Unfortunately, the screen's measured rates aren't very impressive. Despite a good and even brightness of averagely cd/m2 in the highest setting, the contrast only equals a disappointing 1541. The reason for this is the high black value of cd/m2, which quickly leads to a rather grayish reproduction of black hues. 253cd/m²255cd/m²249cd/m²257cd/m²270cd/m²260cd/m²259cd/m²266cd/m²259cd/m² Distribution of brightnessAU Optronics B140RW02Gossen Mavo-MonitorMaximum 270 cd/m² Nits Average cd/m²Brightness Distribution 92 %Center on Battery 270 cd/m²Contrast 1541 Black cd/m² AdobeRGB 1998 Argyll 3D sRGB Argyll 3D Display P3 Argyll 3DThe low viewing angle stability is also on a level that seems inappropriate for this price range. While there is at least a certain amount of leniency for the viewer on the horizontal plane, deviations of only a few degrees lead to clear image distortions vertically. Unfortunately, the T420s isn't an isolated case. Immediate opponents, such as the Dell Latitude E6420 or the HP EliteBook 8460p also have similarly poor angles ThinkPad T420sRegardless of the partly only average results, the notebook can also be used outdoors without problems because of the matt screen surface and strong backlight. Although we would have also liked to see a screen with higher contrasts, the displayed content nevertheless remains legible even in direct we look at the ThinkPad's color reproduction. Both Adobe RGB and sRGB can't be covered completely, and even the larger T520 scores better here. Thus, a higher quality, external monitor should be connected over the available display port for professional image to GHz via Turbo BoostLenovo delivers the ThinkPad T420s with Intel's second generation Core i5 and Core i7 processors. As the top model of the series, our test device is equipped with a Core i7-2640M which is currently the fastest mobile dual core CPU on the market. Thanks to SMT Technology, every core can process two threads at the same time. The processor, manufactured in a 32nm process, is based on the latest Sandy Bridge architecture and has a base clock of GHz. It can be increased up to GHz via Turbo Boost The QM67 chipset, which also supports the processor-embedded HD Graphics 3000, is on the mainboard. The manufacturer has additionally installed an Nvidia Quadro NVS 4200M in a few versions of the series. It is enabled during an operation using Optimus when needed. Lenovo has given the T420s only one RAM module with a capacity of 4 gigabyte. Consequently, the processor also only has a single-channel memory bus available. Users, who need a larger RAM capacity and want to tickle out even the last percent of performance from the laptop, can retrofit another module in the second slot. However, the ThinkPad wasn't noticeably slowed down by the lack of dual-channel operation in our benchmarks. The highlight of all configuration features is undoubtedly the big 160 gigabyte SSD from Intel. It promises a significant performance increase in the system benchmarks. We will examine to what extent the swift memory unit is noticeable in practical information Lenovo ThinkPad T420s 4174-PEG CPU Performance Thanks to the generous hardware configuration, the T420s' performance rates are convincing. We determined the processor's single thread performance with Cinebench R10. The i7-2640M only lags behind the fastest mobile CPU, the Core i7-2960XM, by about 10% with 4450/5468 points 32/64 bit. A remarkable score for a CPU with a TDP of only 35 watts, which is mainly due to the strong Turbo mode of up to GHz. Our T420s has to admit defeat to the quad core competitors in the Multithreading Test of Cinebench An i7-2630QM is faster by more than 50% in view of points. This disadvantage however only has a negative effect when highly parallel and extremely CPU-heavy applications have to be processed. Beyond that, only the Dell Latitude E6420 is available with a quad core among the immediate opponents in the 14 inch R10 Rendering Single 32Bit4450 Cinebench R10 Rendering Multiple CPUs 32Bit9793 Cinebench R10 Rendering Single CPUs 64Bit5468 Points Cinebench R10 Rendering Multiple CPUs 64Bit11700 Points Cinebench R10 Shading 32Bit5015 Cinebench R10 Shading 64Bit5385 Points Cinebench CPU Multi Points Cinebench OpenGL fps HelpGPU Performance The dedicated Nvidia Quadro NVS 4200M was used for our benchmarks. It is automatically enabled in graphics load thanks to Optimus Technology. Benchmarks concerning the Intel HD Graphics 3000 integrated in the processor can be found in our database. The NVS 4200M is based on the GF119 chip, manufactured in a 40 nanometer process, and is also embedded on the entry level card, GeForce GT 520M. It has 48 shader ALUs and supports the current DirectX 11 standard. Lenovo has given the graphics chip a 1 gigabyte DDR3 memory on a 64bit wide memory interface; the clock speed is 740/1480/800 MHz core/shader/memory. This is a bit lower than the manufacturers specification of 810/1620/800 MHz, which results in a performance loss of about 10%. As expected, the card places itself approximately on the level of the identically clocked GeForce GT 520M and reaches 4829 points in 3DMark06. We could determine 2298 points in the performance preset with the successor, 3DMark Vantage. 3DMark 05 Standard 9388 points3DMark 06 Standard Score 4829 points3DMark Vantage P Result 2298 points3DMark 11 Performance 572 pointsHelp Gaming Performance Is this enough to also render newer games smoothly? The answer is a clear "yes and no". The demo version of newly released-building strategy game Anno 2070, used in the test, was only smoothly displayed in 1024x768 pixels and low details with fps. Thus, the NVS 4200M is only slightly faster than the Core i7-2640M's embedded graphics chip in this case. We could select medium or high details in older or less demanding games, like Fifa 12, but gamers won't be satisfied with the T420s' graphics performance. low med. high ultraAnno 2070 2011 CAD Performance This shortcoming won't likely be as devastating for the target group. Although the Quadro products are based on the same GeForce GPUs from Nvidia, these cards are specifically optimized for professional applications, such as from the CAD field. The low raw performance in the case of the NVS 4200M can only be compensated to an extent as can be seen in our very demanding benchmark, SPECviewperf 11System Performance The T420s achieves extremely good results in the system benchmark, PCMark, thanks to the fast processor and the SSD hard disk. With a total score of 11911 points in the Vantage version, the HP EliteBook 8460p 7734 points can be surpassed by 54%. 3312 points in PCMark 7 is also a very strong score. Even some gaming notebooks, like the Samsung 700G7A, don't manage that. Only larger laptops with a quad core processor and a high-end GPU can achieve better results 7 Experience IndexProcessorCalculations per RAMMemory operations per performance for Windows graphics3D business and gaming hard diskDisk data transfer PCMark Vantage Result 11911 pointsPCMark 7 Score 3312 pointsHelp AS SSDMass Memory In contrast to the entry level versions, our T420s test model comes with a 160 GB Intel SSD 320 series. The drive delivers an excellent presentation with sequential transfer rates of MB/s in read and MB/s in write CrystalDiskMark It can also excel with SSD-typical access speeds of milliseconds read/write. Now even faster drives with a SATA III interface are on the market. However, the solid state drives from Intel are deemed to be particularly reliable and are therefore an appropriate choice for the business laptop. Lenovo has branched off almost 16 gigabyte from the total capacity of 160 gigabyte for the recovery partition. The remainder is available for the operating system and other applications on a shared drive. The data memory's speed is already impressing when the preinstalled Windows 7 Professional as the 64bit version is booted The system is ready for use in less than 30 seconds after pressing the power button. Program installations and starts are accelerated significantly compared with a conventional hard disk. Moreover, no noise is generated and it has a lower power consumption. The user however has to accept a smaller capacity and a higher price in Read MB/s Sequential Write MB/s 4K QD32 Write MB/s System Noise ThinkPad users have high demands in an escort for everyday business regarding the noise of their work device. The fan of the T420s is usually deactivated in idle and light office tasks. Consequently, the notebook works absolutely noiselessly thanks to the SSD drive. Unfortunately, this condition doesn't last very long when the hardware is loaded a bit more, for example by a flash video. Despite uncritical temperature rates, the fan is turned on after a few seconds. It rotates fairly quietly and consistently, but it hums along audibly anyway. On the other hand, the ThinkPad is mostly unobtrusive during full load. We couldn't measure more than dB A even during our stress test with Furmark and Prime95 - a very good rate. Up until now, hardly a comparable device remained similarly quiet during this load. Even the Dell Latitude E6420 with a weaker Core i3-2310M climbed up to dB A. Noise Level Idle / / dBADVD / 44 dBALoad / dBA 30 dBsilent40 dBAaudible50 dBAloud min , med , max Voltcraft SL-320 15 cm distanceThe T420s in the stress testTemperature The temperatures of case and hardware reflect the result of our noise measurements. We could measure temperatures of only 22-27°C without load. The notebook hardly gets lukewarm even directly at the vent. The case temperatures increase clearly after longer hardware load induced by our stress test and reach up to 39°C on the top. The cooling system can however keep a pleasant 28°C upright in the wrist rest and touchpad area. The bottom heats up to a very high 51°C selectively, but remains on a acceptable level on average. The maximum temperature of up to 99°C on the GPU and 96°C on the CPU is bordering. However, no stability issues developed in our multi-hour stress test and the processor only throttled marginally from GHz to GHz. The processor and graphics card remained a lot cooler in a realistic load induced by Cinebench or Anno 2070. Consequently, the device's cooling capacity should also be suitable for a warm summer. °C103 °C100 °C86 F °C94 °C79 °C83 F °C83 F28 °C82 °C78 F Maximum °C = 103 FAverage °C = 88 F °C85 °C110 F51 °C124 F29 °C84 °C98 °C95 °C78 F29 °C84 °C90 F Maximum 51 °C = 124 FAverage °C = 94 F Power Supply max. °C = 130 F Room Temperature °C = 67 F Voltcraft IR-360+ The average temperature for the upper side under maximal load is °C / 88 F, compared to the average of °C / 85 F for the devices in the class Office.+ The maximum temperature on the upper side is °C / 103 F, compared to the average of °C / 94 F, ranging from to °C for the class Office.- The bottom heats up to a maximum of 51 °C / 124 F, compared to the average of °C / 98 F+ In idle usage, the average temperature for the upper side is 25 °C / 77 F, compared to the device average of °C / 85 F.+ The palmrests and touchpad are cooler than skin temperature with a maximum of °C / F and are therefore cool to the touch. ± The average temperature of the palmrest area of similar devices was °C / 82 F °C / F. Speakers The T420s has two small stereo speakers, which are hidden behind a lattice on the keyboard's left and right. Not much has changed in regards to the mediocre sound quality of other ThinkPad range models. Midranges could already only be played insufficiently from the small speakers, and we didn't notice any basses. Speech is rendered somewhat tinny, but intelligibly and without distortions providing the user doesn't exceed a low volume. Otherwise it is advisable to connect an additional sound system using the headphone out, which succeeded with good quality in the Consumption The ThinkPad T420s' power consumption isn't conspicuous. 10 to 16 watts in idle aren't a record for a laptop with Optimus support, but are within an acceptable limit. The power requirement clearly increases in full load. We could measure a maximum of watts in the unrealistic stress test with Prime95 and Furmark. In view of the installed hardware and the only marginal throttling, it's a good rate. The Dell Latitude 6420, which was even more energy efficient in idle, consumed a bit more despite a weaker processor in this case watts. The included 90 watt power adapter has a sufficient capacity to charge the battery even during 6 cell battery now only has a capacity of 44 Wh due to the T420s' slim case, while the T420 had 57 Wh. The laptop managed a battery runtime of over 6 hours in the Battery Eater Reader's test, which simulates the notebook's idle mode in minimum brightness. So about 2 hours more than the previous T410s. Surfing via WLAN also proves that the new Sandy Bridge range is more energy efficient than the former Arrandale processor with a battery life of almost 4 hours. The T420s can't hide its powerful hardware and had to give up after 42 minutes in Runtime Idle without WLAN, min brightness 6h 16min WiFi Surfing 3h 57min DVD 2h 55min Load maximum brightness 0h 42min Lenovo Thinkpad T420sLenovo hasn't really launched a new product onto the market with the T420s. No matter if it's the classic ThinkPad case design, the excellent input devices or the installed hardware, we have seen almost all of these model characteristics in the sister model, T420, or the previous T410s. Nevertheless, the T420s occupies a market niche that is supposed to especially address business customers with its combination of high performance components and high mobility. They will likely be pleased about a fast Core i7, an SSD drive and an extensive connectivity including UMTS/HSPA at a price of just under 1800€. The manufacturing quality and case stability is high-end, but is surpassed by a few competitors, such as the HP EliteBook 8460p. We noticed room for improvement in the fan management's fine-tuning and the built-in screen. The latter is suitable for outdoor use due to its matt surface and good brightness, but is very viewing angle dependent and has a disappointing black value. Overall, the Lenovo ThinkPad T420s earns itself a good, though not very good total score of 84%. In addition to the EliteBook 8460p from HP, the Dell Latitude E6420 could be a possible alternative. It can achieve a battery life of up to 12 hours due to an optional 9 cell battery. By courtesy of... Editor of the original article Sebastian Jentsch - Managing Editor Consumer Laptops - 1748 articles published on Notebookcheck since 2010Computers always had an important place in my life, starting with an Intel 80286 microprocessor in the early 1990s. I became interested in the productive side of technology, especially in campus radio, while studying at TU Chemnitz and during a trainee program in Belfast. Hardware interests led me to manage which is now a division of Notebooksbilliger, for a few years. I became self-employed in 2010 and took the next logical step in my career by starting to write for Notebookcheck. In Review Lenovo ThinkPad T420s 4174-PEG, by courtesy of SpecificationsGraphics adapterNVIDIA NVS 4200M - 1024 MB VRAM, Core 740 MHz, Memory 800 MHz, shader rate 1480 MHz, DDR3-VRAM, ForceWare GB , 1x 4096 MB DDR3-RAM 1333 MHz, 2 inch 169, 1600 x 900 pixel, AU Optronics B140RW02, LED backlight, glossy noStorageIntel SSD 320 Series SSDSA2BW160G3L, 160 GB SoundcardConexant 20672 Intel Cougar Point PCH - High Definition Audio ControllerConnections2 USB 1 USB / Gen1, 1 VGA, 1 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Connections 1 headphone/microphone combo port mm jack, Card Reader 4in1 for SD/SDHC/SDXC/MMC, 1 Fingerprint ReaderNetworkingIntel 82579LM Gigabit Network Connection 10/100/1000MBit/s, Intel Centrino Ultimate-N 6300 AGN a/g/n = Wi-Fi 4/, Bluetooth Thinkpad Bluetooth F5521gw Mobile Broadband UMTS/HSPAOptical driveHL-DT-ST DVDRAM GU40NSizeheight x width x depth in mm 26 x 343 x 230 = x x inBattery44 Wh Lithium-Ion, 3900 mAh, VOperating SystemMicrosoft Windows 7 Professional 64 BitCameraWebcam MegapixelAdditional featurespower adapter 90 Watt, quick start guide, Lenovo ThinkVantage tools, 36 Months kg = oz / pounds, Power Supply 200 g = oz / pounds Devices with the same GPUDevices with Same Screen Size and/or Weight Tips for buying a notebook - notebookCHECK Purchase AdvisoryFind the right notebook - notebookCHECK Hardware GuideDisplay resolution comparison - DPI grain size of displaysOur test criteriaManufacturer's informationPros+Good manufacturing quality and case stability +Great connectivity +High-end inputs +Matt screen surface +SSD +Optimus support Cons-Contrast weak screen with high viewing angle dependency -Very high temperature in full load -High priceWhat we like Fast, light, perfectly equipped - that's how we like the business sector. What we'd like to see Dear Lenovo, a fine-tuning of the fan management doesn't have anything to do with witchcraft. What surprises us That cutbacks have to be made on the screen in a laptop of almost 1800€. The competion Lenovo's own ThinkPad T420, the Dell Latitude E6420, and the HP EliteBook 8460p. Lenovo ThinkPad T420s 4174-PEG - 11/23/2011 v2old Till Schönborn Application Performance94% Office - Weighted Average Till Schönborn, 2011-12- 9 Update 2021-05-18
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Findhelpful customer reviews and review ratings for Lenovo Thinkpad T420 14-Inch Laptop (Intel Core i5 2.5ghz,4GB,250GB DVDRW Win 7 Professional) Lenovo Thinkpad T420 14-Inch Laptop (Intel Core i5 2.5ghz,4GB,250GB DVDRW Win 7 Professional) by Lenovo. Write a review. . 35 177 228 427 165 31 394 371

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