Comparison Asus ROG Strix G18 2023 G814JV [G814JV-N6055] vs Acer Predator Helios 18 PH18-71 [PH18-71-90WV]

— Glossy. A glossy surface improves the overall picture quality: other things being equal, the picture on such a screen looks brighter and more colorful than on a matte one. On the other hand, pollution is very noticeable on such a surface, and in bright external lighting, a lot of glare appears on it, which can greatly interfere with viewing. Therefore, instead of the classic gloss, laptops are increasingly using an anti-reflective version of such a coating (see below). Nevertheless, this option still does not lose popularity: it is somewhat cheaper than the “anti-glare”, and in soft, relatively dim lighting, it can even provide a more pleasing image to the eye.

— Matte. Matte finish is inexpensive and does not form glare even from fairly bright lighting. On the other hand, the picture on such a screen is noticeably dimmer than on a similar glossy display. However, this moment can be compensated by various design solutions (primarily a good margin of brightness); so this option can be found in all categories of modern laptops — from low-cost models for working with documents to top gaming configurations.

— Glossy (anti-glare). A variation on the glossy finish described above, designed to reduce glare from external light sources. Such screens really glare noticeably less than traditional glossy ones (or even do not give glare at all); at the same time, in...terms of image quality, they are at least superior to matte ones. So it is this type of coating that is most popular nowadays.

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.

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.

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).

This feature means that the laptop screen has received the Pantone Validated certification.

Pantone is a professional colour system created by the company of the same name and widely used in design and printing. One of Pantone's basic ideas is that each colour should remain the same at all stages of work — from agreeing on a general idea to printing / releasing the final product; To do this, all shades covered by the system are assigned code names, which are used in the work. In the case of laptops, Pantone certification means that when working with materials and software tools that use a given colour scheme, the colours on the screen will match the actual Pantone hues as closely as possible.

We emphasize that there is no question of perfect correspondence (LCD matrices are not physically capable of adequately displaying some shades); in addition, screens with such certification may have different colour gamuts — both in percentages and in the systems used for designation (sRGB, Adobe RGB, DCI P3 — see above). However, even if the colour is beyond the capabilities of the screen, it will be displayed as accurately as possible. Therefore, for professional tasks associated with intensive use of Pantone, it is worth choosing monitors with official certification; An example of such tasks is the printing of image printing.

Laptop display certification for safe blue light emission levels and panel flicker rates. The presence of a TÜV Rheinland certificate confirms that the screen is comfortable for the eyes.

TÜV Rheinland is a large international concern headquartered in Cologne, Germany, providing a wide range of audit services. The company's specialists have developed and approved a number of tests for the compliance of the screens of mobile devices, monitors and TVs with the required level of eye protection from the harmful effects of display radiation on the user's vision on the other side of the screen. The authoritative opinion of TÜV Rheinland is respected in the tech community. Certificates from this body are issued to successfully tested electronics for the implementation of blue light filtering and screen flicker suppression technologies.

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 +.

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.

Each series combines chips that are similar in general level, purpose, and often also in individual specific features. Moreover, most series include processors of several generations at once, which can differ significantly in actual characteristics. It is worth noting that until recently laptops were equipped almost exclusively with processors from AMD or Intel - until in 2020 Apple introduced its own chip Apple M1 (with updated versions Apple M1 Pro and Apple M1 Max), Apple M2 (2022) with powerful chips M2 Pro, M2 Max and Apple M3, M3 Pro, M3 Max (2023). At the moment, the following series are mainly relevant in laptops:

— AMD Ryzen 3. The most inexpensive series of AMD chips in the Ryzen family (Ryzen 3, Ryzen 5, Ryzen 7 and Ryzen 9) using the Zen microarchitecture. In terms of the general design, Ryzen 3 is similar to its older brothers, but half of the computing cores are deactivated. However, it is quite advanced and is found even in ultrabooks.
...> — Ryzen 5. The second series based on Zen architecture is a more affordable alternative to Ryzen 7 chips. Ryzen 5 chips have somewhat more limited performance characteristics (in particular, a lower clock frequency and, in some models, L3 cache size). Otherwise, they are completely similar to the “sevens” and are also positioned as high-performance chips for gaming and workstations. See "Ryzen 7" below for more details.

- Ryzen 7. The first series of processors from AMD, built on the Zen microarchitecture. It was introduced in March 2017. In general, Ryzen chips (of all series) are promoted as high-end solutions for gamers, developers, graphic designers and video editors. One of the main differences between Zen and previous microarchitectures was the use of simultaneous multithreading, due to which the number of operations per clock was significantly increased at the same clock frequency. In addition, each core received its own floating-point calculation unit, the speed of the first level cache increased, and the L3 cache capacity in Ryzen 7 chips is 16 MB as standard.

— Atom. Processors specifically designed by Intel for mobile devices (including smartphones). They are mainly used in ultra-compact laptops.

— Core M. Processors designed for portable equipment (in particular, ultra-compact laptops) and characterized by extremely low heat generation, allowing the use of passive cooling systems. They were introduced in 2014 as the first serial chips based on the 14 nm process technology.

— Celeron. The most budget series in the modern line of desktop processors from Intel. However, the latest generations come with integrated graphics.

— Pentium. Budget desktop processors from Intel, slightly superior in performance to Celeron, but not up to the Core i3. Also carry integrated graphics.

— Processor. The entry-level processor line that precedes the Core i3 family in the modern Intel hierarchy. Such chipsets are found in entry-level laptops designed for everyday household or office use, as well as undemanding games.

- Core i3. A series of entry-level and mid-level processors, the most budget series in the Core ix family; however, it outperforms the Pentium and Celeron series.

— Core i5. A series of mid-range processors, both in general and in the Core ix family. The architecture is dual- or quad-core, they have a third-level cache, and many models are also equipped with a built-in graphics chip.

— Core i7. A series of productive processors; before the advent of i9 was the most advanced in the "Core i" family. Core i7 chips have at least 4 cores, large level 3 cache and integrated graphics.

— Core i9. Top-level processors released in 2017; the most powerful line of consumer-grade laptop processors at the time of its introduction, displacing Core i7 chips from this position. They have from 6 cores and a volume cache of level 3.

— Core Ultra 5. Transformation of the popular series of mobile processors of the strong mid-range Intel Core i5, which received the Ultra prefix from the end of 2023 - when the Meteor Lake generation of chipsets debuted. The main feature of Core Ultra 5 processors is a separate NPU, which gives advantages when working with AI models.

— Core Ultra 7. A pre-top series of high-performance mobile processors from Intel, which replaced the Core i7 family at the end of 2023 (with the advent of a new generation of Meteor Lake chipsets). A neural coprocessor responsible for accelerating the operation of artificial intelligence algorithms has become a mandatory attribute of Ultra models.

— Core Ultra 9. A line of the most powerful laptop processors from Intel, released to replace the Core i9 family at the end of 2023. The premiere of models labeled Ultra took place in the generation of Meteor Lake chipsets. A distinctive feature of Intel Core Ultra 9 is the presence of a separate NPU to improve the efficiency of using artificial intelligence models.

— Apple. A series of processors from Apple, which debuted in November 2020 along with the release of the next generations of MacBook, MacBook Air and MacBook Pro. In the initial configurations, they are equipped with 8 cores - 4 productive and 4 economical; the latter, according to the creators, consume 10 times less energy than the former. This, combined with the 5 nm process technology, has made it possible to achieve very high energy efficiency and at the same time performance. It is also worth noting that the processors of this series are made according to the system-on-chip scheme: a single module combines a CPU, a graphics adapter, RAM (in the first models - 8 or 16 GB), an NVMe solid-state drive and some other components (in particularly Thunderbolt 4 controllers).