It has been 19 years since IBM released the first ThinkPad product in 1992. In this 19 year, ThinkPad has always maintained a black classic appearance and has its own unique views on technology, such as the first appearance of little red dot in notebooks, the design of full-size keyboard and APS active protection system. ThinkPad persistence? Thinking? The original intention is to continue the classics to this day.
IT 168 evaluation was born in 2000, which is a T series with high performance, high security, durability and portability in ThinkPad. After 1 1 year of innovation and technical precipitation, this series has now developed into a leading product in business notebooks. 20 1 1 In April, Intel released the second-generation intelligent Core processor, and a new generation T series product ThinkPad T420 equipped with this platform went on the market.
Due to the powerful Sandy Bridge processor and the latest NVIDIA Quadro NVS 4200M professional graphics card, and the screen has become a 16:9 widescreen, what else? Black fans? (ThinkPad commonly known as? Blackie? ) full of curiosity about T420. We have made a simple analysis of T420 in the form of appreciation before. Let's take a deeper test.
ThinkPad T420
Parameter name specification parameter
processor
Intel Core i7-2620M (clocked at 2.7GHz)
chip set
Intel QM67
Standard memory
4GB DDR3 1333
hard disc capacity
500GB 7200 rpm
CD-ROM drive
Digital multifunctional display
display chip
Integrated Intel HD graphics card+NVIDIA NVS 4200m (1GB memory)
screen
14 inch, resolution 1600? 900, 16: 9, LED backlight
Network/wireless
Gigabit Ethernet card, 802.11b/g/n (300 Mbps)
Peripheral interface
Two USB2.0, 1 USB/eSATA dual-purpose interfaces, DisplayPort, VGA, RJ45, RJ 1 1, audio composite interface, ExpressCard and card reader.
battery
Six-cell lithium battery (10.8V 5200mah)
weight
2.23 kg
operating system
Pre-installed genuine Windows 7 Professional Edition
Evaluation prototype provision
Beijing Haitian technology ThinkPad notebook specialty department
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Is it still classic? ThinkPad T420 Unpacking Picture Appreciation Click to View
The fine-tuning appearance of the interface has not changed much.
The appearance of ThinkPad T420 has not changed much. It is still a low-key and steady black, and it is still a square shape design. Although there are not many fashion factors in the appearance of this notebook, it is irresistible to young people today. The almost pure black fuselage, low-key and steady, makes it look overwhelming; Metal silver hinges and red dots are just right; The well-defined shape design and soft and smooth lines interpret an alternative aesthetic feeling.
▲T420 is slightly narrower than T4 10, but slightly longer.
▲ Surface A of ▲T420 is made of high elastic carbon polymer.
▲ The bottom is made of carbon fiber composite.
Although the overall design of ThinkPad notebook looks simple and simple, it seems to have a kind of magic, which makes people like it more and more. At the same time, the handle of the fuselage is also very good, which makes the user feel very comfortable and natural to operate. It can be seen that the materials used are also very elegant. The A side of this T420 is made of high elastic carbon polymer composite material, which has the advantages of lightness, firmness and delicate hand feel. The bottom of the fuselage is made of carbon fiber composite material, which has the characteristics of high strength, heat resistance, corrosion resistance and radiation resistance. The combination of these two materials makes T420' s fuselage durable. At the same time, with the magnesium roll cage under the A surface, the fuselage is more secure and stable, and users no longer have to worry about data loss caused by external impact or vibration.
▲ Interface distribution on both sides of the fuselage
▲ Distribution of front and rear interfaces of fuselage
Compared with the previous generation T4 10, the interface part of T420 is slightly different. The interface layout is more regular and tidy, and it is more convenient to connect expansion devices, and the interfaces do not affect each other. Moreover, T420 upgraded eSATA interface to Power eSATA interface, which can also be called eSATA/USB dual-purpose interface. This interface not only increases the support for USB 2.0, but also has better power supply capability than eSATA interface.
▲ Processor cooling hole
▲ Cooling holes at the bottom of the fuselage.
As a professional business notebook, T420 has also made great efforts in the heat dissipation design of the fuselage. It is equipped with cooling holes for CPU, memory, graphics card and other components at the bottom of the fuselage, and the fuselage is kept in the normal temperature range through the cooperation of these air inlet holes and air outlet holes at the left and right ends of the fuselage.
16:9 screen ratio, the visual effect is better.
▲ The screen ratio was changed to 16:9.
T420 has changed a lot in display, changing the screen ratio from 16: 10 T4 10/6: 9. Although the 16:9 screen is more in line with the human eye's perspective, it is also the same as 1600? The high resolution of 900 can display more content for users, but what about people who are loyal to the 16: 10 screen? Black fans? It is still a pity.
▲ Opening and closing angle reaches 180?
The maximum opening and closing angle is the most effective support of ThinkPad notebooks for business people working in different working environments. T420 still insists on this feature, making users' office environment more casual.
▲ The keyboard has not changed.
On the keyboard design, T420 adopts the traditional keyboard design of ThinkPad, which is consistent with the previous generation T4 10. Wide keycap, comfortable feel and moderate elasticity are the outstanding features of this keyboard, which is one of the reasons why some people love ThinkPad products. Starting from T4 10, the Esc key and the Delete key, which were enlarged to twice the size, were also preserved. These two buttons, which are often used and easy to cause misoperation, are enlarged, making the user's operation smoother.
▲ Double pointing system
ThinkPad T420 adopts a dual pointing control system which combines a pointing stick and a touch pad, so that users with different habits can quickly adapt to the mouse control mode of this notebook. For users who use this design for the first time, the pointing stick may be unfamiliar and difficult to operate, but if you get used to it, you will find that it is very flexible, even as high as an ordinary external mouse, which can be said to be a sharp weapon for people who work on the move. Needless to say, the multi-touch panel is operated by multiple fingers at the same time, which makes mobile office easier.
▲T420 indicator light
Indicator light is an indispensable part of notebook, and T420 is no exception. As a humanized auxiliary design, the indicator light can remind users of the current working state of the notebook. At the same time, in order to distinguish the buttons with different functions, the color of the indicator light is of course different, soft light green means start, eye-catching red means disable and so on.
▲ 1 10 megapixel camera
T420 adopts/kloc-0.00 million pixel camera, and supports video transmission with 1280x720 resolution.
▲T420 expansion slot
T420 has reserved two expansion slots at the bottom of the fuselage for users, one is Mini PCI-E slot, through which users can install 3G network cards and other devices. The other is a memory slot. Because the machine in this test uses a single piece of 4GB memory, which has been installed in the memory slot under the keyboard, the position at the bottom of the fuselage is empty.
Office application is the T420 benchmark performance test of housekeeping skills.
Another big change of ThinkPad T420 is that it is equipped with Intel's latest Sandy Bridge processor platform. The T420 tested this time uses i7-2620M processor, based on 32nm technology, with a main frequency of 2.7GHz and a three-level cache of 4MB.
▲CPUZ screenshot
▲GPUZ screenshot
In addition to the core graphics card brought by the Core i7-2620M processor, this T420 is also equipped with NVIDIA NVS 4200M professional discrete graphics card.
▲Windows 7 index test
From the processor test, we can see that Sandy Bridge processor is much better than the previous generation in terms of technology, frequency and power consumption, and it can also be slightly inferior from the above Windows 7 test. Judging from the evaluation of Windows 7 system, the overall final score is 4.7. In the performance of all components in each sub-item, except the performance of desktop graphics card is slightly lower, other sub-items have reached more than 5.5 points. The lack of performance of desktop graphics cards is more due to the dynamic switching of graphics cards. Because the graphics card load is relatively low, the platform does not call NVIDIA NVS 4200M discrete graphics card.
In addition to the index test that comes with Windows 7, we also selected two professional performance evaluation software with high coverage and widely recognized by users to test this product. The test results of 3DMARK and PCMARK can help us to understand the basic performance of this T420 more simply.
▲3D entertainment performance test: 3DMarkVantage( 1024X768)
▲ multimedia performance test: PCMark Vantage( 1024X768)
In addition to the basic performance test, in order to make the test closer to the actual application environment, let everyone know the real performance of the product more intuitively. As a business notebook, we chose many familiar daily office applications such as file operation, video conversion, image compression and so on to test, in order to further obtain its comprehensive performance in daily applications.
▲ Details of a single large file
▲ Details of scattered files
▲ It takes 2 minutes and 42 seconds to copy a single 3.67GB file to another partition.
▲ It takes 2 minutes and 50 seconds to copy 4985 scattered files to another partition.
▲ It takes 14 minutes 10 second to compress a single file with 3.67GB.
▲ It takes 17 minutes and 40 seconds to compress 4985 scattered files.
▲ It takes 1 min 33 seconds to decompress a 3.67GB single file compressed package.
▲ It takes 2 minutes and 20 seconds to decompress 4985 scattered file compression packages.
▲ Convert video information
▲ Two video conversions take 7 minutes 17 seconds.
▲ Picture batch setting
▲ It takes 4 1 second to process 25 pictures.
Game test temperature and comments
ThinkPad T420 as a business notebook, its game performance is not outstanding, but the so-called? Work and rest? Appropriate entertainment is still important, and users don't buy this product for office, so we should simply test its game performance. In view of its commercial positioning, we only choose resident evil 5 as the basic evaluation of the game.
▲ resident evil 5 points
▲ Game Frame Size Diagram
Judging from the test results, T420 is still relatively smooth in the general 3D game environment, so T420 should be able to cope as long as it is not a large-scale game with high load.
▲ Six-cell lithium battery
ThinkPad T series is mainly aimed at business people who often need mobile office, so endurance is a main selling point of T series. T420 is equipped with 10.8V 5200mAh six-cell lithium battery and adopts Sandy Bridge platform. Although the battery capacity has not increased, the power consumption has decreased, so its battery life can basically reach about 330 minutes, which is very good in a 14 inch notebook.
Heat dissipation has always been a high concern of notebooks, especially business notebooks. Next, we will choose Aidi 64 software to carry out a comprehensive baking machine test at 25 degrees Celsius, and after 30 minutes, we will use infrared thermometer to investigate the highest temperature in many positions on the fuselage surface.
▲C-plane temperature distribution, with a maximum of 39. 1 Celsius.
▲ Air outlet temperature, up to 50.7 degrees Celsius.
▲ Bottom temperature distribution, with a maximum of 53. 1 Celsius.
Judging from the temperature distribution, most of the heat is concentrated in the air outlet on the left and the air inlet at the bottom, while the highest temperature in the operating area on the C side is only 39. 1 Celsius, which is close to the human body temperature, and users will be very comfortable to operate. It can be seen that the cooling holes on the side and bottom of T420 have played their due roles, which makes the whole machine have excellent cooling performance.
▲T420 Bare Metal Weight and Travel Weight
The bare metal weight of T420 is 2.23kg, which is lighter than T4 10 (2.3 1kg). It is estimated that this is due to the change of screen ratio and the addition of Sandy Bridge processor. The travel weight of T420 is only 2.7kg, which also improves the portability to a certain extent. It is undoubtedly a boon for business people who often need to move their offices or travel.
Summary: ThinkPad T series, as a classic business notebook series, has been constantly? Thinking? With continuous progress, it shows us the connotation and definition of the product. With the passage of time and the precipitation of technology, ThinkPad introduced a brand-new T420.
Compared with the previous generation T4 10, T420 has not changed much, but it is still a strong presence in the notebook market. The latest Sandy Bridge platform, NVIDIA Quadro NVS 4200M professional discrete graphics card, solid body, strong battery life and excellent heat dissipation. , are all chips to occupy the market. However, the change of screen ratio is somewhat unsatisfactory. Although the 16:9 display is more ergonomic, it also brings a more portable body to the whole machine. But I'm used to the screen of 16: 10. At first glance, the screen of 16:9 always feels a little flat and a little long, which is difficult to adapt to for a while.