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).
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.
3DMark06
The result shown by the laptop processor in 3DMark06.
This test is primarily focused on testing performance in games — in particular, the ability of the processor to process advanced graphics and artificial intelligence elements. Test scores are reported as scores; the higher this number, the higher the performance of the tested chip. Good 3DMark06 results are especially important for
gaming laptops.
Passmark CPU Mark
The result shown by the laptop processor in the Passmark CPU Mark test.
Passmark CPU Mark is a comprehensive test that is more detailed and reliable than the popular 3DMark06 (see above). It checks not only the gaming capabilities of the CPU, but also its performance in other modes, based on which it displays the overall score; this score can be used to fairly reliably evaluate the processor as a whole (the more points, the higher the performance).
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.
USB 3.2 gen1
Number of
USB 3.2 gen1 ports provided in the laptop. Initially, this interface was called USB 3.0, later USB 3.1 gen1.
Be that as it may, USB is the most popular modern interface for connecting various peripherals to computer - from keyboards, mice and flash drives to very original devices. It can also be used to charge smartphones and other gadgets. And USB 3.2 gen1 is the successor to the popular USB 2.0. In this version, the data transfer speed was increased 10 times - up to 4.8 Gbit/s, and the power supply for external devices was also increased. At the same time, devices with other versions of USB can be connected to the USB 3.2 gen1 port - the main thing is that they have full-size USB A plugs and have enough power for normal operation.
As for the number of USB connectors, the more there are, the more peripherals you can connect to the laptop without using splitters.
USB C 3.2 gen1
The number of
USB-C 3.2 gen1 ports provided in the laptop (these connectors were previously labeled USB-C 3.1 gen1 and USB-C 3.0).
USB-C is a relatively new universal connector designed for use in desktop and laptop computers and other devices. It is slightly larger than microUSB, has a convenient double-sided design (it doesn’t matter which side you connect the plug), and also allows you to implement increased power supply and a number of special functions. In addition, the same connector is standardly used in the Thunderbolt interface versions v3 and v4, and technically it can be used for other interfaces; so in some laptops USB-C has a combined purpose — see "Alternate Mode" for more details. And in some models (mostly the most compact ones), USB-C can also charge the device’s own battery.
Specifically, USB-C version 3.2 gen1 allows connection speeds up to 5 Gbps. As for the number of such ports, it is most often small — usually 1 – 2. This is due to the fact that peripherals for USB-C are produced noticeably less than for full-sized USBs. However, in some configurations, the number of connectors of this type can reach 4.
USB C 3.2 gen2
The number of
USB C 3.2 gen2 ports provided in the laptop (previously, such connectors were labeled USB C 3.1 gen2 and USB C 3.1).
USB C is universal connector created relatively recently and designed for use in desktop and laptop computers. It is slightly larger than microUSB, has convenient double-sided design (no matter which side the plug is connected to), and also allows for increased power supply and number of special functions. In addition, the same connector is standardly used in the Thunderbolt v3 interface, and technically can be used for other interfaces; so in some laptops USB C has combined purpose - see “Alternate Mode” for more details. And in some laptops (mostly the most compact ones), USB C can also charge the device’s own battery.
Specifically, the USB C 3.2 gen2 version allows for connection speeds of up to 10 Gbps. As for the number of such ports, it is most often small - usually 1 - 2. This is due to the fact that significantly fewer peripherals for USB C are produced than for full-size USB. However, in some configurations the number of connectors of this type can reach 4.
