Comparison Acer Nitro 5 AN515-57 [AN515-57-57ML] vs Acer Nitro 5 AN515-45 [AN515-45-R94Y]

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.

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.

The colour gamut of the laptop matrix according to the NTSC 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.

Specifically, NTSC is one of the first colour models created back in 1953 for colour television. It is not used in the production of modern LCD matrices, but is used to describe and compare them. NTSC covers a wider range of colours than sRGB, which is standard in computer technology; therefore, even a small number of percentages in this case corresponds to a fairly wide coverage. For example, a value of 72% or more in NTSC is already considered a good value for use in design and graphics. At the same time, the same NTSC figures on different screens may correspond to different sRGB figures; so if accurate colour reproduction is decisive for you, these details should be clarified before buying.

Also note that among individual monitors, it is easier to find a screen with a wide colour gamut; while it will also cost less than a laptop with similar display characteristics. So choosing a laptop with a h...igh-end screen makes sense mainly when portability is as important to you as high-quality colour reproduction.

Each series combines chips that are similar in general level, purpose, and often also in individual specific features. At the same time, 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 almost exclusively equipped with processors from AMD or Intel - until in 2020, Apple introduced its own chip Apple M1(with updated versions of Apple M1 Pro and Apple M1 Max), Apple M2(2022) with productive chips M2 Pro, M2 Max and Apple M3, M3 Pro, M3 Max(2023). Then Qualcomm entered the arena with its Snapdragon processors.

At the moment, the following series are mainly relevant in laptops:

— AMD Ryzen 3. The cheapest series of AMD chips in the Ryzen family (Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9 and Ryzen AI), using the Zen microarchitecture. In ter...ms of general design, Ryzen 3 is similar to its older brothers, but half of the computing cores are deactivated. Nevertheless, it is quite advanced and is even found in ultrabooks.

— Ryzen 5. The second series on the Zen architecture is a more affordable alternative to the Ryzen 7 chips. Ryzen 5 chips have slightly more limited performance characteristics (in particular, a lower clock frequency and, in some models, L3 cache volume). Otherwise, they are completely similar to the "sevens" and are also positioned as high-performance chips for gaming and workstations. For more details, see "Ryzen 7" below.

— 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 memory increased, and the L3 cache volume in Ryzen 7 chips is 16 MB by default.

— Ryzen 9. AMD Ryzen 9 processors on the Zen microarchitecture debuted in 2019. The series became the top among all Ryzens, displacing Ryzen 7 from this position. First of all, the CPU line is usually used for professional tasks (design, video editing, 3D rendering), games, streaming and other high-load applications. The first Ryzen 9 models had 12 cores and 24 threads, in later ones this number was increased to 16 and 32, respectively.

— Ryzen AI. The Ryzen series of processors with artificial intelligence was launched in 2024. The first in the lineup was the AMD Ryzen AI 300 subfamily. It introduces the new Zen 5 computing core architecture, has integrated RDNA 3.5 graphics, and a powerful XDNA 2 neural processor with a performance of up to 50 TOPS (trillion operations per second). The Ryzen AI chips are perfect for a wide range of tasks — from everyday work to complex calculations using AI algorithms.

— Atom. Processors specially developed by Intel for mobile devices (including smartphones). Used mainly in ultra-compact laptops.

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

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

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

— Processor. A line of entry-level processors that precedes the Core i3 family in Intel's modern hierarchy. These chipsets are found in entry-level laptops designed for everyday home or office use, as well as undemanding games.

— Intel Core i3 / Core 3. A series of entry-level and mid-range processors, the most budget-friendly in the Core family. However, in terms of characteristics and computing power, the processors of this line are superior to the Pentium and Celeron series (see above).

— Intel Core i5 / Core 5. A line of mid-range processors — both in general and by the standards of the Core family in particular. Most often, the processors of the series contain from 4 to 10 cores, and in terms of performance, they are between the relatively inexpensive i3 (Core 3) and the powerful i7 (Core 7).

— Intel Core i7 / Core 7. A series of high-performance processors from Intel. Before the i9, it was the most advanced in the Core family, but then it gave way to the "nine". Core 7 chips have at least 4 cores and integrated graphics.

— Core i9. Top-end processors released in 2017; the most powerful line of consumer-grade notebook processors at the time of their release, displacing Core i7 chips from this position. They have 6 cores and a large L3 cache.

— Core Ultra 5. A transformation of the popular series of mobile processors of the strong mid-range Intel Core i5, which received the Ultra prefix since the end of 2023 — when the Meteor Lake generation of chipsets debuted. The main feature of the 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 the new generation of Meteor Lake chipsets). A mandatory attribute of the Ultra models has become a neural coprocessor, responsible for accelerating the operation of artificial intelligence algorithms.

— Core Ultra 9. The most powerful line of laptop processors from Intel, released to replace the Core i9 family at the end of 2023. The premiere of models with the Ultra addition took place in the Meteor Lake chipset generation. 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 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, 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), a solid-state NVMe drive and some other components (in particular, Thunderbolt 4 controllers).

— Snapdragon. Snapdragon processors are essentially mobile solutions — they are traditionally installed in smartphones and tablets. Separate lines of Snapdragon chips have been released specifically for laptops (for example, X Elite on ARM architecture). Many laptops based on such processors are equipped with built-in LTE or even 5G modules. Their advantage is also high energy efficiency.

The specific model of the processor installed in the laptop, or rather, the processor index within its series (see above). Knowing the full name of the processor (series and model), you can find detailed information on it (up to practical reviews) and clarify its capabilities.

The code name for CPU installed in the laptop.

This parameter characterizes, first of all, the generation to which the processor belongs, and the microarchitecture used in it. At the same time, chips with different code names can belong to the same microarchitecture/generation; in such cases, they differ in other parameters - general positioning, belonging to certain series (see above), the presence / absence of certain specific functions, etc.

Nowadays, the following code names are relevant in Intel processors: Coffee Lake, Comet Lake, Ice Lake, Tiger Lake, Jasper Lake, Alder Lake, Raptor Lake (13th Gen), Alder Lake-N, Raptor Lake (14th Gen), Meteor Lake (Series 1), Raptor Lake (Series 1), Lunar Lake (Series 2). For AMD, the list looks like this: Zen 2 Renoir, Zen 2 Lucienne, Zen 3 Cezanne, Zen 3 Barcelo, Zen 3+ Rembrandt, Zen 3+ Rembrandt R, Zen 2 Mendocino, Zen 3 Barcelo R, Zen 4 Dragon Range, Zen 4 Phoenix Zen 4 Hawk Point, Zen 5 Strix Point. Detailed data on different code names can be found in special sources.

The clock speed of the processor installed in the laptop (for multi-core processors, the frequency of each individual core).

Theoretically, a higher clock speed has a positive effect on performance, as it allows the processor to perform more operations per unit of time. However, in fact, the capabilities of the CPU depend on a number of other characteristics — primarily on the series to which it belongs (see above). It even happens that of the two chips, the more performant in the overall result is the slower one. With this in mind, it makes sense to compare by clock frequency only processors of the same series, and ideally, also of the same generation; and the laptop as a whole should be judged by the complex characteristics of the system, as well as by the results of tests (see below).

Processor clock speed achieved in TurboBoost or TurboCore "overclocking" mode.

Turbo Boost and Turbo Core technologies are used by different manufacturers (Intel and AMD, respectively), but they have the same principle of operation: load distribution from more loaded processor cores to less loaded ones to improve performance. The "overclocking" mode is characterized by an increased clock frequency, and it is indicated in this case.

For more information about clock speed in general, see the relevant paragraph above.

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.