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 cd / m2 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 cd / m2. And in the most advanced models, this parameter can be
350 – 400 cd / m2 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.
Graphics card model
GeForce graphics cards from NVIDIA:
RTX represented by
RTX 2060,
RTX 2060 Max-Q,
RTX 2070,
RTX 2070 Max-Q,
RTX 2070 Super, RTX
2070 Super Max-Q,
RTX 2080,
RTX 2080 Max-Q,
RTX 2080 Super,
RTX 2080 Super Max-Q,
RTX 3050,
RTX 3050 Ti,
RTX 3060,
RTX 3060 Max-Q,
RTX 3070,
RTX 3070 Max-Q, RTX 3070 Ti, RTX 3080,
RTX 3080 Ti,
RTX 4050,
RTX 4060,
R TX 4070,
RTX 4080,
RTX 4090 ;
MX1xx represented by MX110, MX130 and MX150,
MX2xx(MX230 and MX250),
MX3xx(MX330 and MX350),
MX450, GTX which represent GTX 1050,
GTX 1060,
GTX 1060 Max-Q,
GTX 1070,
GTX 1070 Max-Q,
GTX 1080,
GTX 1080 Max-Q,
GTX 1650,
GTX 1650 Max-Q,
GTX 1650 Ti,
GTX 1660 Ti,
GTX 1660 Ti Max-Q and. AMD also offers video cards
Radeon 520,
Radeon 530(535),
Radeon 540X,
Radeon 610(625, 630),
Radeon RX 550 (550X, 560),
Radeon RX 640,
Radeon RX 5500M,
Radeon RX 6800M and
Radeon Pro.
Note that all the above models are discrete. Actually, for a configuration with discrete graphics, it is the model of a separate video adapter that is indicated; if it is supplemented by an integrated module, the name of this module can be clarified by the official characteristics of the processor.
It is also worth mentioning that this paragraph does not give the full name of the model, but only its name within the series (the series itself is given separately - see above). However, knowing the series and model, one can easily find detailed information about the graphics card.
Video memory
The amount of native video memory installed in the laptop's graphics card. Only discrete video adapters and their advanced varieties like SLI or Dual Graphics have such memory (see "Video card type").
The more memory, the more powerful the graphics card and the better it can handle complex graphics. Of course, the specific capabilities of the adapter depend on a number of other parameters (primarily the characteristics of the graphics processor); however, the difference in the amount of memory, as a rule, is quite consistent with the difference in the overall level. In terms of specific numbers, solutions with
2 GB are entry-level,
4 GB and
6 GB are intermediate, and
8 GB - to advanced, and
12 GB and
16 GB can be found in top-end gaming laptops and high-end workstations.
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.
Smartphone communication
The presence of a laptop with special tools for
interacting with smartphones and other similar gadgets (for example, tablets).
Such tools include at least special applications originally installed on a laptop (or available for download from official resources). In addition, additional hardware may be provided — primarily an NFC module for ease of connection (see above). The specific possibilities of interaction may be different, first of all they depend on the software used; The most common functions include:
— broadcasting an image from a smartphone to a laptop screen (or vice versa);
— direct file exchange;
— work with applications on a portable gadget through a laptop;
— sending notifications from one device to another;
— using a laptop to make calls, write messages, work with smartphone contacts.
It should be noted that for interaction with smartphones, mainly branded applications designed for laptops of a particular manufacturer are used. So, Huawei has Huawei Share and Huawei Share OneHop, Asus has myAsus, Dell has Dell Mobile Connect and Alienware Mobile Connect. And compatibility with smartphones may be different. For example, Huawei's solution only works with Huawei and Honor branded gadgets, while Dell's mobile apps are publicly available for iOS and Android gadgets (although in the latter case, correct operation is not guaranteed for all such devices).
Separate
...ly, we note that the macOS operating system used in Apple laptops itself has an extensive set of features for interacting with the iPhone and other iOS-based gadgets. Therefore, for “apple” devices, the “interaction with a smartphone” function is not indicated separately — it is present in such laptops by definition. See "Operating system — macOS" for details.Backlight
The presence of
backlight in the laptop keyboard. This feature not only gives the device a stylish look, but also makes the keys more visible than in
non-backlit laptops. The specific functionality of the backlight can be different, it depends both on the price category and on the general purpose of the laptop. For example, single-color lighting is found both in low-cost laptops and in ultrabooks for professional use. And game models can provide
advanced RGB lighting and even the ability to
sync backlight.
The backlight colour is usually chosen by the manufacturer, taking into account the general specialization of the laptop. So,
white backlighting is popular in
“office” devices — it fits well into a discreet business style and at the same time looks good on its own.
Yellow (golden) colour is much less common — mainly among
fashion laptops, although there are exceptions. In turn, among gaming models, the most advanced kind of backlighting is often found — RGB: it allows you to choose a shade as you wish, besides, a colour change can signal various game and system events. A number of top gaming laptops feature 4-zone RGB backlighting on the keyboard, or even custom per-key backlighting that makes the
...buttons visually stand out from the rest. Gaming devices are also being produced with simpler, solid-colour backlighting systems — in such cases, the keyboards usually glow red, green or blue. It is these shades that are best combined with the characteristic design of gaming laptops; at the same time, the red glow is usually used in devices with a rather catchy and “aggressive” appearance (and in itself is an important element of this style), while blue and green are typical for a more restrained design.
