Recently, we received Lenovo's new ThinkPad T420S notebook. As the flagship product of T series with high performance and mobility, due to time, we only tested the performance of the core components of the product at the first time in the evaluation. From the perspective of product design, the biggest change of the new generation ThinkPad T series products lies in the product size specifications. ?
▲ThinkPad T420S notebook computer
The biggest difference between ThinkPad T420S and the previous generation products is that it adopts Intel's new generation Sandy Bridge core platform and NVS 4200M graphics card newly introduced by NVIDIA. While cooperating with the graphics card in the processor core, the platform also supports NVIDIA Optimus technology, which can intelligently call discrete graphics cards according to the load of 3D applications, thus achieving excellent graphics performance and longer battery life. Especially with 160GB SSD, the overall performance of the platform is expected to be significantly improved. ?
Product model
ThinkPad T420S
ThinkPad T4 10S
processor
Intel Core i5 2520M 2.50GHz
Intel Core i5 560M 2.66GHz
deploy
internal storage
4GB DDR3- 1333 model
4GB DDR3- 1333
display card
NVIDIA? NVS4200M
NVIDIA NVS 3100m
hard disc
160GB？ Solid (magnetic) disk
160GB？ Solid (magnetic) disk
Wired network/WLAN/Bluetooth
Intel 82579lm (1000m)/Intel WiFi link (black and white)
Intel 82579lm (1000m)/Intel WiFi link (black and white)
class monitor
14.0( 16:9) 1600? 900 LED
14.0( 16: 10) 1440? 900 LED
battery
Specification11.1v/3900mA //44Wh
1 1. 1V/3900 mah//44Wh
Engagement/interface
1 USB 3.0, 1 USB 2.0, 1 power supply USB 2.0, VGA DB- 15, DisplayPort, RJ-45, headphone jack.
1 USB 3.0, 1 USB 2.0, 1 power supply USB 2.0, VGA DB- 15, DisplayPort, e-SATA, RJ-45, headphone jack.
Notebook size/weight
340? x？ 230 x2 1. 1-25.9mm/？ 1.694 kg
337x241.5x21.1-25.9mm.
The powerful configuration of this new ThinkPad T420S is mouth watering. So in other respects, what's the difference between this machine and before? Below, we specially found ThinkPad T4 10S, which also uses SSD solid state drives, for all-round comparison, so that everyone can feel the unique charm of the new model in design and performance from the details.
▲ Glass and carbon fiber top cover
In terms of materials, the top cover of Thinkpad T420s still inherits the traditional style of Thinkpad. Slimming? The combination of LED backlight screen, glass carbon fiber composite material and magnesium-aluminum alloy roll cage can provide users with the most efficient protection, which has been verified in the long history.
▲ Introduce the design of 16: 9 high-resolution screen.
ThinkPad T420S has changed a lot in screen specifications. Little black fan? Some people even think that their products may become mediocre. But objectively speaking, 16:9 is a good choice from the perspective of cost control and mainstream video processing requirements. After all, 16:9 panel has higher cutting utilization rate than 16: 10 panel.
▲ Due to the screen specifications, the C-plane design of T420 has been slightly adjusted.
All the selling points of ThinkPad T4 10s are embodied in T420s. The biggest improvement of ThinkPad T420S in mold specification lies in the introduction of 16: 9 high-resolution screen design, and the best resolution can reach 1600x900. The wider T420S makes the screen keyhole higher than the positions on both sides of the fuselage, so that the stress on the screen hooks on the left and right sides is more uniform.
▲ More cooling holes are reserved at the bottom of the fuselage.
▲ The port layout on the left side of the fuselage remains unchanged.
▲ The port layout on the right side of the fuselage has not changed.
▲ USB3.0 and DisplayPort interfaces are introduced into the back of the fuselage.
In terms of interface design, ThinkPad T420s introduced USB3.0 and DisplayPort configuration, and chose the traditional horizontal layout in terms of port layout. The original intention of adopting this design is also to save internal space and achieve T420s? Slimming? Purpose.
▲ Comparison of processor specifications: the main frequency of T420S is slightly lower, but the turbo effect is no less than T4 10S (left: T420S, right: T4 10S).
The Intel Core i5 2520M processor that comes with ThinkPad T420S is a native dual-core processor product released by Intel at the beginning of 20 1 1, and its main frequency is 2.5GHz. Compared with the previous generation T4 10S, the main frequency of Core i5 560M processor is slightly lower, but with the second generation Turbo Boost technology, its maximum main frequency can still reach 3.2GHz, so the specification is not good. ?
▲ Contrast of in-core graphics card (left: T420S, right: T4 10S)
The default frequency of the Intel HD graphics card integrated in ThinkPad T420S notebook Core is 650MHz. Although there is not much advantage in the default frequency, the highest dynamic frequency of this graphics card can reach 1.3GHz, but the high-definition graphics card provided by Core i5 560M equipped with T4 10S will have different execution efficiency because it does not really integrate the CPU core.
▲ Specification comparison of discrete graphics cards (left: T420S, right: T4 10S)
NVIDIA NVS 4200M equipped with ThinkPad T420S is a graphics card specially designed by NVIDIA for commercial notebooks, which can be regarded as a high-frequency professional version of Geforce GT520M graphics card. It has 48 CUDA cores, which is twice as much as NVS 3 100M of the previous generation T4 10S. DirectX 1 1 features are supported, and the maximum memory support is 1GB. At the same time, the working frequency is increased to 8 10MHz and the shader frequency is also increased to 65438.
▲ Rendering ability test of processor (left: T420S, right: T4 10S)
▲ Compared with T4 10S, the rendering ability of ThinkPad T420S processor under multithreading is improved by more than 10%.
▲3DMarkVantage test (left: T420S, right: T4 10S)
▲ The overall 3D performance of ▲ThinkPad T420S is improved by more than 60%.
Comments: Compared with T4 10S using Intel Core i5 560M processor before, the IntelCore i5 2520M processor used in T420S does not have much advantage in core frequency, but its test results in CineBench R 10 using Intel second-generation Turbo technology are as good as those of previous products, even slightly improved. In graphics processing, its test score of nearly 10000 can fully meet the mainstream 3D processing needs.
▲PCMarkVantage test (left: T420S, right: T4 10S)
▲ The overall performance of ▲ThinkPad T420S multimedia is improved by more than 20% compared with the previous generation.
In the test of PCMarkVantage, because two generations of products have adopted the collocation scheme of SSD solid-state hard disk, it has a high performance in the execution efficiency of hard disk. The brand-new ThinkPad T420S significantly improves the overall performance of the platform through the effective combination of Intel Core i5 2520M processor and NVS 4200M graphics card. The test results above 12000 also show that the product can fully meet the needs of users in most daily multimedia applications. ?
▲ Symark 2007 test (left: T420S, right: T4 10S)?
▲ The comprehensive office performance of ▲ThinkPad T420S is better than that of the previous generation 15% or more.
In the comprehensive office application environment, ThinkPad T420S also has a 15% improvement in performance. Judging from various achievements, T420S' performance in four common office applications is satisfactory, with a comprehensive score of over 230, among which the advantages of video creation and office execution efficiency test are the most obvious.
The overall power consumption of ThinkPad T420S is slightly higher than that of T4 10S under high load.
In the previous specification table, we have seen that the combination of Intel Core i5 2520M and NVIDIA NVS 4200M standard on ThinkPad T420S will lead to higher power consumption. In terms of shell material, two generations of notebooks use a large number of aluminum-magnesium alloy materials. Although this kind of material has advantages in fuselage strength and auxiliary heat dissipation, its actual heat dissipation effect is still not optimistic due to the mold space of 14 inch.
▲ Comparison of calorific value of fuselage C surface (left: T420S, right: T4 10S)
▲ Comparison of calorific value at the bottom of fuselage (left: T420S, right: T4 10S)
▲ Comparison of calorific value of fuselage air outlet (left: T420S, right: T4 10S)
▲ Higher power consumption makes ThinkPad T420S slightly improve the calorific value of the fuselage.
With the processor matching of 32nm process, the overall power consumption of the two products is not exaggerated. In contrast, the left area of C plane, the exit position of the bottom processor and the exit position of the main processor of ThinkPad T420S notebook are slightly higher than the previous T4 10S under long-term and high-load working environment. However, because the dual air outlets of the two generations of products are designed on the left and back of the fuselage, such calorific value has little effect on most right-handed users.
From this comparison, Lenovo ThinkPad 420s, as the main model of the new generation T series, has basically maintained the classic design style of the previous generation products in mold design, and the product has slightly changed in display specifications and detail design. At the same time, the port layout and some small details have been slightly changed, and the popular USB3.0 interface has been added, but the whole machine still inherits the excellent workmanship and rigorous overall structure of ThinkPad family. ?
▲ThinkPad T4 10S and ThinkPad T420S.
In the collocation of core components, the hardware configuration of ThinkPad 420s has been fully upgraded. Its products choose Sandy Bridge platform equipped with NVIDIA NVS4200M graphics card. With the good support of Intel Core i5 2520M, the excellent combination of in-core graphics card and discrete graphics card makes this product superior to T4 10S in both daily office and comprehensive processing capacity. ?
▲ThinkPad T420S product ID
Written at the end: By the end of our test, there were rumors that the ThinkPad CPU was slowing down: in high-performance mode, the processor would automatically and strangely reduce to the lowest power consumption mode. The same situation was found not only on ThinkPad, but also on T420 and T520 models. ? Perhaps this rumor is not groundless, but the two products that participated in the comparative test did not find anything unusual. The two products fully demonstrate the performance level of platform application while ensuring exquisite workmanship, and there is no so-called frequency reduction phenomenon. Therefore, we believe that even the phenomenon of frequency reduction is likely to exist in the hype of individual batches or a few media.