Lenovo YOGA S940 evaluation: 3D curved screen shows the flagship color

Lenovo YOGA S940 is the latest product of Lenovo's high-end flagship brand YOGA series, and also the world's first product equipped with 3D curved glass screen notebook , the display effect is very outstanding. In terms of performance, Lenovo YOGA S940 is equipped with the latest 10th generation Intel Core processor, and also supports AI face recognition, automatic background virtualization of video calls and other intelligent functions. Today, we will talk about this Lenovo YOGA S940.

01 Three side metal body details show quality

Lenovo YOGA S940 has a very outstanding design in appearance, holding it like an artwork. It adopts metal fuselage on three sides A, C and D, and there is a YOGA LOGO on the upper left corner of the A side, showing the quality against the dark gray metal fuselage. After CNC drilling and cutting, the edge of surface C has a circle of chamfered bright edges, which will have a reflective effect under the light. In addition, the word YOGA 9 SERIES is engraved on the top of the A side, highlighting the high-end positioning of the notebook.

Lenovo YOGA S940

YOGA LOGO

YOGA 9 SERIES at the top of side A

In terms of lightness, Lenovo YOGA S940 is also ideal. The whole machine weighs about 1.25kg and is about 12.2mm thick, so it will not be too burdensome for short distance mobile office or long distance travel.

Judging from the past test experience, the flagship Thin and light edition Generally, too many interfaces are not equipped. In the case of a small number, quality becomes the decisive factor affecting the experience.

Right side interface

Left side interface

Lenovo YOGA S940 is equipped with two full speed lightning 3 interfaces (40Gbps) on the right side of the fuselage. Lightning 3, which integrates data transmission, video output and PD charging, is the strongest expansion interface at present. There is a Type-C (USB 3.1 Gen 1+PD) and 3.5mm audio interface on the left side of the fuselage.

It is worth mentioning that Lenovo YOGA S940 comes with a Type-C docking station, which can be connected to USB, HDMI and other interfaces. This solves the problem of insufficient interfaces of the whole machine and will not affect daily use.

02 The first 3D curved glass screen has striking visual effects

Lenovo YOGA S940 adopts a 3D curved glass screen, which is also the first notebook equipped with curved screen in the world. Curved surface means that the left and right edges of the screen are curved. The intuitive feeling of curved screen is that the frame is narrower and the sense of visual immersion is stronger. Of course, the Lenovo YOGA S940 screen itself uses a three sided narrow border design, with the narrowest part being only 4.2 mm, which also makes the screen account for 92%.

3D curved glass screen

Lenovo YOGA S940 has a 14 inch screen, a resolution of 4K (3840 × 2160), and IPS materials. The quality of this screen is very high. After testing, the color gamut of the screen covers 100% sRGB and 94% DCI-P3. It also has very good performance in brightness and color accuracy, and the screen has also passed the VESA DisplayHDR 400 certification, which is enough to show the excellent quality of the screen.

Gamut coverage

The maximum brightness reaches 513cd/㎡

△ E is 2.67

0 Optical IR camera

A 0 light IR camera is integrated at the top of the screen, which can quickly complete face recognition. After entering face information in Windows Hello, you can brush your face into the system, and the recognition speed is very fast. After you start the system, the system is basically on for seconds.

03 Ten generation Core meets various scenarios with Fn+Q performance

Lenovo YOGA S940 is equipped with the tenth generation Intel Core i7-1065G7 processor, 16GB of memory (LPDDR4X, dual channel), and 1TB PCIe SSD. Let's talk about the key points.

Core i7-1065G7

Cinebench R15: single core 181 multi-core 752

Core i7-1065G7 is one of the most powerful mobile processors in Intel's ten generation Core Ice Lake family. It uses the latest 10nm technology, has four cores and eight threads, a base frequency of 1.3GHz, a maximum core frequency of 3.9GHz, and the single and multi-core performance of Cinebench R15 is 181 and 752cb, respectively. It has no pressure on daily tasks.

The power consumption of PL1 in beast mode is 26W

Lenovo YOGA S940 also made additional adjustments to the processor to maximize its performance. Lenovo YOGA S940 also supports Fn+Q, which is to quickly switch the performance mode of the notebook through hotkey combination. Fn+Q specifically includes three types: quiet, balanced, and wild. The processor performance release in wild mode is the strongest (PL1 Min 15W, PL1 Max 26W), which is suitable for processing complex scenes such as professional applications. The performance release is slightly weak in balanced and quiet modes, but the endurance will be correspondingly prolonged.

Iris Plus Graphics 64EU

Core i7-1065G7 integrates the 11th generation of Iris Plus Graphics G7 and has 64 execution units. Its performance can fully meet the needs of some mainstream online games.

CDI detection information

CDM score

The memory is 16GB dual channel LPDDR4X-3733, which cannot be replaced on board. The hard disk is 1TB PCIe SSD, and this capacity hardly needs to be upgraded.

association Computer butler hold-all

In addition to the power of hardware performance, Lenovo YOGA S940 also supports a variety of intelligent functions, including intelligent sensing, camera background virtualization, real-time online, etc., which can bring a more intelligent and intelligent experience for daily use. These functions can be set in Lenovo Computer Manager - Toolbox.

The author briefly tried the intelligent sensing function, which can automatically lock the screen when you leave, and automatically unlock the face recognition when you come back to face the notebook again. The process of unlocking is very fast, and it can be done in almost two seconds, which is very helpful for rapid work.

04 Long lasting and efficient heat dissipation

PCMark 10 endurance test

The battery capacity of Lenovo YOGA S940 is 52Wh. After testing (PCMark 10 modern office, 150cd/㎡ brightness, WiFi on, intelligent mode), the notebook has a life of 7 hours and 10 minutes, and has no problems in daily use for most of the day.

Double copper tube and double fan

Single baking CPU

In terms of heat dissipation, Lenovo YOGA S940 adopts the heat dissipation specification of double copper tubes and double fans. We use CPU with lower load（ AIDA64 CPU). After 30 minutes, the processor frequency is 2.84GHz, the temperature is 80 ℃, and the power consumption is 19W.

Surface C temperature

D surface temperature

As for the temperature of surface C, the maximum temperature of keyboard area is 50.8 ℃, the minimum temperature is 37.5 ℃, and the average temperature is 43.3 ℃. The temperature of palm rest and touch control board is basically around 38 ℃. The maximum temperature of surface D is 49 ℃, and the middle temperature is 40.8 ℃.

It should be noted that the test results will be affected by the ambient temperature, and there will be some differences in the test results due to different ambient temperatures. In general, Lenovo YOGA S940 will have some heat under continuous load, but within a reasonable range, it has little impact on CPU performance release.

05 Evaluation summary

As the world's first notebook equipped with 3D curved glass screen, Lenovo YOGA S940 handed over a fairly satisfactory answer. The curved surface on the left and right sides of the screen further enlarges the screen designed with narrow borders, making the visual effect more shocking and immersive. In addition to the excellent quality of the screen itself with 4K resolution and 100% sRGB/94% DCI-P3 color gamut, this screen is enough to impress any viewer.

In terms of design and workmanship, Lenovo YOGA S940 is also perfect. Whether the metal materials used on A, C and D sides or the polishing of details, it shows the high-end business atmosphere of the whole machine, and it is like an art in the hand.

As for performance, Lenovo's YOGA S940, with the professional tuning of Intel's 10 generation Core and Fn+Q, enables the processor to release the most powerful performance according to the use scenarios. Lenovo's YOGA S940 will not disappoint people in terms of professional applications, daily office and entertainment.

At the same time, Lenovo YOGA S940 also innovatively introduced a number of intelligent functions, including 0 photo sensitive human face recognition unlocking and automatic locking, automatic background virtualization of video calls, etc., bringing users a more intelligent and intelligent human-computer interaction experience, which will also become a major trend of future PCs.

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