Company Lenovo for many years of work in the market has established itself as one of the leading manufacturers of computer equipment, including monoblocks, portable computers, monitors and, of course, laptops. The latter are especially given attention, offering a wide variety of models for specific tasks and wallet.
An important direction in the portable segment are convertible notebooks of the series Yogathat combine lightness, compactness, performance and, of course, quick and easy transformation from laptop to tablet. More recently, a model came to our test C740 on the processor Intel Core i7 10-th generation of the line Yoga, and today we are ready to tell you about it.
PACKAGING AND DELIVERY
We received a test sample of a device without a localized keyboard. This laptop comes in a thin black cardboard box with a large orange Yoga wordmark and a Lenovo logo on the edge. On the side of the box, there is traditionally a sticker with information about the product (characteristics, serial number, and so on). Inside you will find the laptop itself, which is packed on both sides in formatted foam polyethylene. On the side is a large 65 W power supply and a network cable for it.
APPEARANCE
Externally, Lenovo Yoga C740 resembles a standard strict business ultrabook in a thin and light dark gray aluminum case with a neat mirrored Yoga logo in the corner of the lid. The laptop weighs 1380 grams. Dimensions – 321.8 x 214.6 x 14.9mm. On the sides and front, the manufacturer decided to use slightly smoothed sharp edges in the design, and there are rounded edges on the back, both on the lid and on the base of the case. Loops also have a rounded shape. Between them are openings for hot air outlet, behind which you can see the radiator of the cooling system. On the bottom, everything is pretty standard – two long rubber feet and a hole in the cooling system, under which you can see the cooler.
As for the various interfaces, there are not so many of them here. On the left, there is a 3.5 mm combo jack for connecting headphones, a microphone and headsets, as well as two USB 3.1 Type-C connectors. One of them serves for charging both from the power supply unit and from an external battery with Power Delivery support. Both connectors can be used to connect external media, as well as monitors with HDMI and Display Port. On the right, the manufacturer has placed a power button with a built-in LED, as well as one USB 3.1 Type-A connector.
SCREEN
It will not work to open the transformer laptop with one hand, which is due to the rigidity of the hinges necessary for the format. But the screen opens almost 360 degrees.
When the screen is tilted 190 degrees or more, it switches to tablet mode and disables the keyboard and touchpad. The panel is touch-sensitive and supports up to 10 simultaneous touches, as well as stylus control. However, the stylus will have to be purchased separately, since it is not included in the package. The screen is surrounded by a thin bezel. On the sides, it takes only 5 mm, on top 10, and the largest on the bottom – 12 mm. Above the screen there is also a WEB-camera for fans of conferences in ZOOM and Skype, and a built-in shutter will allow you to close the camera if you are afraid that special services are watching you. It does not block the sound of the microphone, but no one will see you walking around the house in or without blue panties. The camera does not support Windows Hello.
As a screen, a 14-inch 8-bit IPS-matrix with a Full HD resolution (1920 x 1080 pixels) and a refresh rate of 60 Hz is used here. Brightness – 300 nits. The sRGB color gamut is about 100%. No highlights were found on black. The screen itself is glossy, as it is covered with glass, but with an anti-reflective coating. However, it still gives off a little glare from light sources hitting it.
SOUND, FILLING AND FUNCTIONALITY
For the sound in this solution, two speakers of 2 W with support for Dolby Atmos are responsible. The manufacturer decided to place the speakers on the base on the sides of the keyboard. A good enough option, since when using a laptop, nothing blocks them. Although when used in tablet mode, the speakers will be narrower at the bottom and the sound will be muffled when placed on a flat surface. However, if you hold the device in your hands, then this should not cause problems.
In terms of sound, the speakers are loud enough. They should be enough for movies on the road, and for listening to certain music too, but you will not hear bass here.
It is worth praising the manufacturer for the power button on the side. In this device, it is in place, since in tablet mode, the transformer can be quickly sent to sleep, and then also immediately return to using it. It took about 13 seconds to turn on, which is within the standard range for M.2 SSD solutions.
The Lenovo Yoga C740 keyboard unit is recessed into the case. The keyboard travel is smooth and not loud, and the built-in backlight, which is activated and controlled by the Fn + Space combination, has two brightness levels. There is no digital block, but there are functional combinations of the Fn button with F1-F12 and arrows. To protect personal data, the manufacturer has placed a separate fingerprint scanner under the arrows, which does its job quite well. The touchpad is pretty standard and measures 102 x 68 mm. It squeezes in the corners to simulate mouse buttons, and also supports standard Windows gesture controls.
FILLING, BATTERY, OPERATION AND TESTS
The Lenovo Yoga C740 that came to us for the test is based on a 14-nanometer Intel Core i7-10710H processor, clocked at 1.8 GHz. The processor is 4-core and operates in 8 threads, and the maximum frequency is 4300 MHz. Responsible for graphics is the Intel UHD graphics core built into the processor with 1 gigabyte of memory allocated for graphics.
The system board contains 16 gigabytes of DDR4 RAM (operating at 1333 MHz) with a maximum frequency of 2666 MHz. There is no possibility of its expansion. The internal storage in the test sample was played by a 1TB NVMe SSD from Samsung. There are no additional slots for drives, but the installed one can be replaced if desired.
The laptop comes with a 51Wh non-removable Li-ion polymer battery. A full charge will last for 8-9 hours in everyday use (surfing the Internet, working with documents, watching videos and listening to music) with 50% screen brightness. The laptop fully charges from the complete charge in about 2-2.5 hours.
In standard mode, AIDA64 shows the following average temperatures:
- CPU – 40 ° C
- GPU Core – 40 ° C
- SAMSUNG MZVLB1T0HBLR-000L2- 40 ° C
Under maximum load in tests, the processor warmed up to 98 ° C, and the graphics core to 74 ° C. In standard operating mode, this laptop works almost silently, and under load it was possible to fix the maximum noise level in the region of 35-36 dB.
CrystalDisk Info tests indicate an average solid state drive temperature of 51 ° C. Disk speed in CrystalDiskMark was 3420 MB / s for reading and 2769 MB / s for writing. The AS SDD test, as usual, shows much more modest results – 2532 MB / s for reading and 2276 MB / s for writing.
The laptop, as expected, is completely unsuitable for gaming. We tested it in two gaming tests. In the Superposition benchmark on the Unigine 2 engine at 720p at low settings, the system showed from 16 to 27 frames. In the Final Fantasy XV Windows Edition benchmark, the laptop was able to score 1385 points with similar configurations and received an unsatisfactory performance rating. We also tried to play DOOM Eternal, but the launcher refused to launch. In addition, when rendering 3D scenes in Cinebench r20, this laptop managed to achieve 1422 points in the multi-core test and 374 points in the single-core test.
RESULTS
Lenovo Yoga C740 is a pleasant and light enough laptop for work and study, as well as a fairly large and comfortable tablet for leisure. Thanks to the good stuffing, good autonomy and quality of the screen, it will perfectly serve as a typewriter, graphics tablet and compact media player. The only frustrating thing is the price, which is still around 100 thousand rubles.
Author: Sergey Dyakonenko (Madnfs)
Read also: Review of a powerful laptop with two screens ASUS ROG Zephyrus Duo 15 SE GX551Q for 350 thousand rubles…
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