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Comparison Lenovo Legion Y740 17 [Y740-17IRHg 81UJ004TUS] vs Lenovo Legion Y540 17 [Y540-17IRH 81Q40079RA]

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Lenovo Legion Y740 17 (Y740-17IRHg 81UJ004TUS)
Lenovo Legion Y540 17 (Y540-17IRH 81Q40079RA)
Lenovo Legion Y740 17 [Y740-17IRHg 81UJ004TUS]Lenovo Legion Y540 17 [Y540-17IRH 81Q40079RA]
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Main
Corsair keyboard with independent per-key RGB backlighting.
Typelaptoplaptop
Screen
Screen size17.3 "17.3 "
Screen typeIPSIPS
Surface treatmentanti-glareanti-glare
Screen resolution1920x1080 (16:9)1920x1080 (16:9)
Refresh rate144 Hz60 Hz
Brightness270 nt300 nt
Contrast1100 :1
Colour gamut (sRGB)90 %
Colour gamut (Adobe RGB)58 %
NVIDIA G-Sync
CPU
SeriesCore i7Core i7
Model9750H9750H
Code nameCoffee Lake (9th Gen)Coffee Lake (9th Gen)
Processor cores6 cores6 cores
Total threads1212
CPU speed2.6 GHz2.6 GHz
TurboBoost / TurboCore frequency4.5 GHz4.5 GHz
3DMark0610652 score(s)10652 score(s)
Passmark CPU Mark13774 score(s)13774 score(s)
SuperPI 1M8.3 с8.3 с
RAM
RAM16 GB32 GB
Max. RAM32 GB32 GB
RAM typeDDR4DDR4
RAM speed2666 MHz2666 MHz
Slots22
Graphics card
Graphics card typededicateddedicated
Graphics card seriesNVIDIA GeForceNVIDIA GeForce
Graphics card modelRTX 2060RTX 2060
Video memory6 GB6 GB
Memory typeGDDR6GDDR6
VR
3DMark0636381 points
3DMark Vantage P57644 points
Storage
Drive typeSSD M.2 NVMeSSD M.2 NVMe
Drive capacity1024 GB1024 GB
M.2 drive interfacePCI-E 3.0 4xPCI-E 3.0 4x
Additional 2.5" slot
Connections
Connection ports
HDMI
v 2.0
miniDisplayPort
v 1.4a
HDMI
v 2.0
miniDisplayPort
v 1.4
Card reader
USB 3.2 gen123
USB 3.2 gen21 pc
USB C 3.2 gen11 pc
USB C 3.2 gen21 pc
Thunderbolt interfacex1 v3
Alternate Mode
LAN (RJ-45)1 Gbps1 Gbps
Multimedia
Webcam1280x720 (HD)1280x720 (HD)
Camera shutter
Speakers2.12
Brand acousticsHarman
Audio decodersDolby Atmos
Security
kensington / Noble lock
kensington / Noble lock
Keyboard
BacklightRGBwhite
Lighthing syncCorsair iCUE
Key designisland typeisland type
Num block
Input devicetouchpadtouchpad
Battery
Battery capacity4955 mAh
Battery capacity76 W*h57 W*h
Battery voltage15.36 V
Operating time6 h5 h
Powered by USB-C (Power Delivery)
Fast charge
General
Preinstalled OSWindows 10 HomeWindows 10 Home
Materialaluminiummatte plastic
Dimensions (WxDxT)412x305x25 mm400x290x26 mm
Weight2.9 kg2.84 kg
Color
Added to E-Catalognovember 2019july 2019

Refresh rate

The frame rate supported by the laptop screen. In fact, in this case we are talking about the maximum frequency; the actual frame rate may be lower than this value, depending on the content being displayed — but not higher.

Theoretically, the higher the frame rate, the smoother the movement on the screen will look, the less moving objects will be blurred. In fact, the situation is such that even in relatively modest modern laptops, 60 Hz matrices are installed — in general, this is quite enough for the human eye, since a further increase in speed ( 90 Hz and higher) does not significantly improve the visible “picture”. However, in high-end gaming and multimedia models designed for demanding users, higher values — 120 Hz, 144 Hz, 165 Hz and even higher, namely 240 Hz and 300 Hz.

Brightness

The maximum brightness that a laptop screen can provide.

The brighter the ambient light, the brighter the laptop screen should be, otherwise the image on it may be difficult to read. And vice versa: in dim ambient light, high brightness is unnecessary — it greatly burdens the eyes (however, in this case, modern laptops provide brightness control). Thus, the higher this indicator, the more versatile the screen is, the wider the range of conditions in which it can be effectively used. The downside of these benefits is an increase in price and energy consumption.

As for specific values, many modern laptops have a brightness of 250 – 300 nt and even lower. This is quite enough for working under artificial lighting of medium intensity, but in bright natural light, visibility may already be a problem. For use in sunny weather (especially outdoors), it is desirable to have a brightness margin of at least 300 – 350 nt. And in the most advanced models, this parameter can be 350 – 400 nt and even more.

Contrast

The contrast of the screen installed in the laptop.

Contrast is the largest difference in brightness between the lightest white and darkest black that can be achieved on a single screen. It is written as a fraction, for example, 560:1; while the larger the first number, the higher the contrast, the more advanced the screen is and the better the image quality can be achieved on it. This is especially noticeable with large differences in brightness within a single frame: with low contrast, individual details located in the darkest or brightest parts of the picture may be lost, increasing the contrast allows you to eliminate this phenomenon to a certain extent. The flip side of these benefits is an increase in cost.

Separately, we emphasize that in this case only static contrast is indicated — the difference provided within one frame in normal operation, at constant brightness and without the use of special technologies. For advertising purposes, some manufacturers may also provide data on the so-called dynamic contrast — it can be measured in very impressive numbers (seven-digit or more). However, you should focus primarily on static contrast — this is the basic characteristic of any display.

As for specific values, even in the most advanced screens, this indicator does not exceed 2000: 1. But in general, modern laptops have a rather low contrast ratio — it is assumed that for tasks that require more advanced image characteristics, it is more...reasonable to use an external screen (monitor or TV).

Colour gamut (sRGB)

The colour gamut of the laptop matrix according to the Rec.709 colour model or according to sRGB.

Colour gamut describes the range of colours that can be displayed on the screen. It is indicated as a percentage, but not relative to the entire variety of visible colours, but relative to the conditional colour space (colour model). This is due to the fact that no modern screen is able to display all the colours visible to humans. However, the larger the colour gamut, the wider the screen's capabilities, the better its colour reproduction.

Specifically, sRGB and Rec.709 are the most popular of today's colour models; they have the same range and differ only in the scope (sRGB is used in computers, Rec. 709 is used in HDTV). Therefore, the closer the colour gamut is to 100%, the more accurately the colours on the screen will match the colours that were originally intended by the creator of the film, game, etc. At the same time, note that such accuracy is not particularly needed in everyday use — it critical only for professional work with colour; and even in such cases, it is more convenient to buy a separate monitor with a wide colour gamut for a laptop, rather than looking for a laptop with a high-quality (and, accordingly, expensive) matrix.

Colour gamut (Adobe RGB)

The colour gamut of the laptop matrix according to the Adobe RGB colour model.

Colour gamut describes the range of colours that can be displayed on the screen. It is indicated as a percentage, but not relative to the entire variety of visible colours, but relative to the conditional colour space (colour model). This is due to the fact that no modern screen is able to display all the colours visible to humans. However, the larger the colour gamut, the wider the screen's capabilities, the better its colour reproduction.

The Adobe RGB colour model was originally developed for print applications; the range of colours covered by it corresponds to the capabilities of professional printing equipment. Therefore, theoretically, the extensive coverage of this model will be useful to those involved in the design and layout of high-end printed products. However most laptop screens have very limited Adobe RGB values, rarely exceeding 74%; however, you can also find high-end models where this figure approaches 100%. Of course, the cost of such laptops will also be appropriate; therefore, it makes sense to pay attention to them, first of all, when the ability to work with colour “on the go” is of key importance. If this is to be done in one place, it may be more justified to buy a separate monitor with a wide colour gamut (especially since a monitor with such characteristics is easier to find than a laptop).

NVIDIA G-Sync

Laptop support for NVIDIA G-Sync technology.

This feature is only found on models equipped with discrete NVIDIA graphics cards. It is used to match the frame rate of the screen and the frame rate of the signal arriving at it — so that these frequencies match. This avoids flickering, twitching, and other image artifacts that can occur due to out-of-sync. This feature is especially useful for games where the frame rate of the video signal can "float" depending on the load on the graphics core; in fact, most laptops with G-Sync are specifically for gaming.

A similar solution for AMD video cards is called FreeSync.

RAM

The amount of random access memory (RAM or RAM) actually installed in the laptop.

The amount of RAM is one of the most important indicators characterizing the overall flow Rate of the system. The more RAM installed in a laptop, the better it will cope with “heavy” resource-intensive programs, and the more tasks can be performed on it simultaneously without “brakes” and failures.

Today , 4 GB of RAM is considered the minimum required. A capacity of 8 GB is usually enough for comfortable household use and simple games, 16 GB and 32 GB are enough for running resource-intensive applications and confidently launching modern games. And in advanced gaming and professional laptops there are also larger amounts of RAM - 64 GB or even more.

Note that many laptop models allow you to increase the available amount of RAM; For more details, see “Maximum installed volume”.

3DMark06

The result shown by the laptop's graphics card in 3DMark06.

This test primarily determines how well a graphics card handles intensive workloads, in particular, with detailed 3D graphics. The test result is indicated in points; the more points, the higher the performance of the video adapter. Good 3DMark06 scores are especially important for gaming laptops and advanced workstations. However, it is difficult to call them reliable, since measurements are made on video cards with different TDPs and an overall average score is given. Thus, your laptop can have either more or less than the specified result - it all depends on the TDP of the installed video card.

3DMark Vantage P

The result shown by the laptop graphics card in the 3DMark Vantage P test.

Vantage P is a variant of the popular 3DMark test — namely, the next version of this test after 3DMark06 (see above). Like all such tests, it is designed to test the performance of graphics under high loads and displays the results in points; the more points, the more powerful and performant the graphics card is. Good results in 3DMark Vantage P are especially important if the laptop is going to be used for demanding games. However, it is difficult to call them reliable, since measurements are made on video cards with different TDPs and an overall average score is given. Thus, your laptop can have either more or less than the specified result - it all depends on the TDP of the installed video card.
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