Comparison Lenovo Legion 5 15IAX10 [83F0006WRA] vs Lenovo Legion Pro 5 16IAX10 [83F3000HUS]

Diagonal size of laptop display.

The larger the screen, the more convenient the laptop for watching high-definition movies, modern games, working with large-format graphic materials, etc. Large screens are especially important for multimedia and gaming models. On the other hand, the diagonal of the display directly affects the size and cost of the entire device. So if portability is key, it makes sense to pay attention to relatively small solutions; especially since most modern laptops have video outputs like HDMI or DisplayPort and allow connection of large-format external monitors.

In light of all this, the actual maximum for laptops these days is 17"(17.3"); however larger devices (18") reappeared at the beginning of 2023. The standard option for general purpose laptops is 15"(15.6"), less often 16", a diagonal of 13"(13.3") or 14" is considered small by the standards of such And smaller screens can be found mainly in specific compact varieties of laptops — ultrabooks, 2 in 1, transformers, netbooks; among such devices there are solutions for 12 ", 11" and even 10" or less.

Screen response time to a control signal — in other words, the time between the receipt of such a signal on the matrix and the switching of pixels to a given mode.

Theoretically, the lower the response time, the better the screen handles with dynamic scenes, the higher the frame rate on it can be achieved. At the same time, it is worth noting that almost all modern matrices have sufficient response speed to effectively process the classic frame rate of 60 Hz — and, recall, it is quite enough for most cases. So paying attention to this parameter makes sense, first of all, if you are purchasing an advanced gaming model, the screen of which operates at a frame rate of more than 60 Hz. In other cases, the response time is often not indicated at all.

HDR brightness in laptops indicates how brightly the screen can display content with an extended dynamic range, where both very bright and dark areas of the frame are important at the same time. This parameter is especially noticeable in movies, games, and HDR videos: highlights, sunlight, lights, reflections, and other bright details look more expressive and realistic than on a standard screen. Unlike standard display brightness, which describes everyday work in SDR, HDR brightness specifically relates to the playback of HDR content and better reveals the capabilities of the matrix. The higher this indicator, the more impressive the compatible content looks, although contrast, matrix type, and local dimming are also important for the full result. In practice, a laptop with good HDR brightness is more enjoyable for watching Netflix, YouTube HDR, or modern games with extended range support.

HDR technology format supported by the laptop.

This technology is designed to expand the range of brightness reproduced by the laptop screen; Simply put, an HDR screen will display brighter whites and darker blacks than a regular matrix. In fact, this can significantly improve image quality. First, the expansion of the dynamic range contributes to the brightness and fidelity of colours on the screen; secondly, the visibility of individual details in very bright or very dark areas of the frame is preserved (whereas on a normal screen such details often “sink” in solid white or black).

Note that in order to fully use this function, you need not only a laptop with HDR, but also the corresponding content (video files recorded in HDR, games where this technology is implemented, etc.). In addition, the laptop must support the HDR format used by the content being played. Nowadays, you can find such options:

— HDR10. Historically the first of the consumer HDR formats, less advanced than those described below, but extremely widespread. In particular, HDR10 is supported by almost all streaming services that provide HDR content at all, and it is also common for Blu-ray discs. Allows you to work with a colour depth of 10 bits (hence the name). At the same time, devices of this format are also compatible with content in HDR10 +, although its quality will be limited by the capabilities of the original HDR10.

...— HDR10+. An improved version of HDR10. With the same colour depth (10 bits), it uses the so-called dynamic metadata, which allows transmitting information about the colour depth not only for groups of several frames, but also for individual frames. This results in an additional improvement in colour reproduction.

Dolby Vision. An advanced standard used particularly in professional cinematography. Allows you to achieve a colour depth of 12 bits, uses the dynamic metadata described above, and also makes it possible to transmit two image options at once in one video stream — HDR and normal (SDR). At the same time, Dolby Vision is based on the same technology as HDR10, so in laptops it is almost guaranteed to be combined with at least HDR10, and even with HDR10 +.

VESA DisplayHDR certified, which corresponds to a screen that supports HDR technology.

See above for more details on this technology. And VESA DisplayHDR is an open standard that defines the overall image quality on an HDR screen by a number of parameters — brightness, colour depth, etc. Based on the test results, a screen that meets the required parameters is assigned a certain certificate with a numerical designation. So, the minimum level is DisplayHDR 400, the maximum is DisplayHDR 1400 (although in laptops, as of the end of 2020, there are no screens higher than DisplayHDR 1000). The number in such a designation is indicated by the brightness that the screen must provide: for example, DisplayHDR 400 must produce at least 400 cd / m2. Accordingly, a higher number denotes more extensive display capabilities and more advanced HDR performance.

A separate case is the DisplayHDR True Black certifications. This standard was specifically created for so-called emissive displays such as OLED (see "Matrix type"), which are capable of displaying very deep blacks. The native brightness of such displays is not very high — in particular, the current DisplayHDR 400 True Black and DisplayHDR 500 True Black provide a total screen brightness of only 250 and 300 cd / m2, respectively (against 400 and 500 cd / m2 in the original standards, without the addition " True Black"). However, in terms of black transmission efficiency, such di...splays surpass conventional HDR counterparts by orders of magnitude, which gives a noticeable increase in image quality — in particular, the mentioned True Black standards with indexes 400 and 500 win even when compared with conventional DisplayHDR 1000. However, it should be taken into account that that this advantage is most noticeable in relatively dim ambient light.

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.

In laptops, the image processed by a discrete video card first passes through the graphics built into the CPU, and only then is transmitted to the display. The MUX Switch on the motherboard of gaming laptop models allows you to choose between using integrated or discrete graphics. One of its advanced varieties is the Advanced Optimus intelligent system, which works in conjunction with video adapters from NVIDIA. It allows you to literally choose on the fly the most suitable GPU for data processing, depending on the intensity of the tasks being performed.

The number of USB 3.2 gen1 ports provided in the laptop. Initially, this interface was called USB 3.0, later USB 3.1 gen1.

Anyway, USB is the most popular modern interface for connecting various peripherals to a computer — from keyboards, mice, and flash drives to quite original devices. It can also be used for charging smartphones and other gadgets. And USB 3.2 gen1 is the successor of the popular USB 2.0. In this version, data transfer speed has been increased tenfold — up to 4.8 Gbps, and the power supply for external devices has also been enhanced. At the same time, devices with other USB versions can be connected to a USB 3.2 gen1 port — the main requirement is that they have full-sized USB-A plugs and sufficient power supply for normal operation.

As for the number of USB ports, the more there are, the more peripherals can be connected to the laptop without using splitters.

The number of USB 3.2 gen2 ports provided in the laptop. Previously, this interface was known as USB 3.1 gen2 and USB 3.1.

USB of all versions is the most popular modern interface for connecting various peripherals to a computer — from keyboards, mice, and USB drives to rather unique devices. It can also be used for charging smartphones and other gadgets. The more USB ports a laptop has, the more peripherals can be connected to it without using hubs. Specifically, USB 3.2 gen2 allows for speeds up to 10 Gbps and can deliver up to 100 watts of power to external devices (although the USB Power Delivery feature, which ensures this, is not strictly mandatory). These ports are also compatible with earlier version peripherals that have classic USB-A plugs.