Comparison Black Shark 1 64 GB / 6 GB vs Xiaomi Mi Mix 2 64 GB / 6 GB

The ratio of the screen area to the total front panel area of the phone. Simply put, this spec describes how much of the front panel is occupied by the screen; the rest is the bezels.

This indicator is given exclusively for smartphones with touch screens — it is for them that it is most relevant. The larger the percentage of the body is occupied by the screen, the thinner are the bezels, the neater the smartphone looks and the more convenient it is to work with it with one hand. As for specific numbers, the average values are 80 – 85 %, the higher values allow us to talk about a thin bezel, and more than 90 % — about a “bezel less” design.

Separately, we note that this parameter has nothing to do with the aspect ratio of the screen. The aspect ratio describes only the display itself — its proportions, the ratio between the larger and smaller side of the rectangle.

The most popular nowadays are chips from Qualcomm and MediaTek, CPUs from Unisoc are slightly less common. Qualcomm has several processors of each series, namely Snapdragon 765G, Snapdragon 778G, Snapdragon 7 Gen 1, Snapdragon 7+ Gen 2, Snapdragon 7 Gen 3, Snapdragon 865, Snapdragon 870, Snapdragon 888, Snapdragon 8 Gen 1, Snapdragon 8+ Gen 1, Snapdragon 8 Gen 2, Snapdragon 8 Gen 3. And Mediatek has a low cost series MediaTek Helio P and a line of advanced chipsets MediaTek Dimensity (Dimensity 1000, Dimensity 8000, Dimensity 9000).

Knowing the name of the CPU model installed in the smartphone, you can find detailed data on a particular CPU and evaluate its level and general capabilities. This is especially true in light of the fact that these capabilities depend not only on the number of cores a...nd clock speed, but also on the specific nuances of the design.

The clock frequency of the CPU that the device is equipped with. For multi-core processors, which are standard in modern smartphones, the frequency of each individual core is implied; and if the processor has cores with different frequencies (see "Number of cores") — usually, the maximum indicator is given.

In general, high performance smartphones have high frequency of the processor. However, note that this parameter itself is not directly related to the capabilities of the CPU: many other features of the chip affect the actual performance, and often a low cost solution with a higher clock speed turns out to be less performant than an expensive one, and at the same time, presumably, more "slow" processor. In addition, the overall performance of the system directly depends on a whole set of other factors — primarily the amount of RAM. Therefore, when evaluating a smartphone, it is worth focus not so much on the frequency of the processor, but on the general specs of the system and visual indicators like the results in tests (see below).

The model of the GPU used in the mobile phone.

This module is responsible for all tasks related to graphics; accordingly, its specs directly affect the efficiency of processing a particular picture. This is especially noticeable in the example of modern 3D games. Therefore, the presence of a powerful video adapter is especially important for gaming smartphones. And knowing the model of the GPU, you can find detailed data about it and evaluate its capabilities.

The type of RAM installed in the smartphone.

All modern devices use LPDDR format RAM ( LPDDR4, LPDDR4x, LPDDR5, LPDDR5x, LPDDR5T). In addition to its miniature size, it differs from conventional computer RAM in supporting special data transfer formats (16- and 32-bit memory buses). But versions of such memory can be different:

- LPDDR3. The earliest current generation of LPDDR was introduced in 2012 and has been implemented in devices since 2013. Standardly operates at speeds up to 1600 MT/s (megatransactions per second) and frequencies up to 933 MHz; The “improved” version supports speeds up to 2133 MT/s. Nowadays, this standard is rarely found, mainly among outdated mobile devices.

- LPDDR4. The successor to LPDDR3, officially introduced in August 2014 (although the first hardware developments were released at the end of 2013). The operating speed, compared to its predecessor, has doubled - up to 3200 MT/s; frequency increased to 1600 MHz; and energy consumption was reduced by 40%. In addition, the data transfer format has changed - in particular, instead of one 32-bit bus, two 16-bit buses are used, and some security improvements have been introduced into the standard. This memory can be found in some medium-range smartphones. - LPDDR4x. An improved version of LPDDR4 wit...h reduced power consumption - the standard uses a voltage of 0.6 V instead of 1.1 V. In addition, some improvements were implemented in this type of RAM aimed at increasing speed (it reaches 4266 MT/s) and general optimization of operation - for example, a single-channel mode for undemanding applications. Thanks to such characteristics, this version of memory has become noticeably more widespread than the original LPDDR4. You can find it in mid- and high-end devices.

- LPDDR5. Further development of “mobile” RAM, officially announced at the beginning of 2019. The operating speed in this version is increased to 6400 MT/s, a differential signal format was introduced to improve resistance to interference and errors, and dynamic frequency and voltage control was introduced to reduce power consumption. The use of such memory modules is typical mainly for high-end smartphones.

- LPDDR5x. A more energy efficient and faster version of LPDDR5 RAM. The data transfer speed in it was increased to 8533 MT/s, and the peak throughput indicator was increased to 8.5 Gbit/s. The number of memory banks per channel in LPDDR5x is always 16. RAM of this standard is typical for advanced smartphones of the highest grade.

- LPDDR5T. T is for turbo. The operating speed of the LPDDR5T standard RAM has been increased to 9600 MT/s, and devices with such memory modules are about 13% faster compared to LPDDR5X. The memory operates in the low voltage range from 1.01 to 1.12 V. The corresponding modules are aimed at use in high-end mobile devices.

The water cooling system of the smartphone is designed to increase the efficiency of heat dissipation. Good cooling allows the smartphone to perform properly at peak loads, without freezes or lags. The use of a liquid radiator makes it possible to improve cooling by an average of 4-6 °C compared to passive coolers. Water cooling is used in high-performance smartphones equipped with a performant CPU and GPU and multiple artificial intelligence co-processors.

Water cooling of a smartphone can have various design implementations. The concept of a radiator filled with refrigerant has gained the greatest popularity. In such a cooler, the liquid evaporates as it heats up and condenses in a separate heat exchanger, after which the liquid again enters the cooling radiator. Of course, if you want to increase cooling efficiency, that will increase the dimensions of the smartphone.

The test results are specified either by a younger model in a line or a particular model, made for a better understanding performance of phone models if you compare phones against these parameters. For example, the 128 GB model has test results, and the 256 GB model has no information on the network, and in both models you will see the same value that will give an understanding of the overall performance of the device. But if the editorial office has information for each model individually, then each model will have its test results filled out, and the model with bigger RAM will have bigger values.

The result shown by the device when passing the AnTuTu Benchmark performance test.

AnTuTu Benchmark is a comprehensive test designed specifically for mobile devices, primarily smartphones and tablets. It checks the efficiency of the processor, memory, graphics and I/O systems, thus providing a fairly visual impression of the capabilities of the system. The better the result, the more points are given at the end. And high-performance by AnTuTu rating are smartphones that score over 750K points

Like any benchmark, this test does not give absolute accuracy: the same device can show different results, usually with deviations within 5 – 7%. These deviations depend on many factors that are not directly related to the system — from the load of the device with third-party programs to the air temperature during testing. So, it is possible to speak about a significant difference between the two models only if the difference in their indicators goes beyond those 5 – 7%.

The result shown by the device when passing the performance test (benchmark) Geekbench.

Geekbench is a specialized benchmark designed for CPUs. Since version 4.0, the test has also been applied to graphics accelerators; towards the end of 2019, the benchmark was released under the number "5". The characteristics of portable gadgets usually provide data specifically for the CPU. During testing, Geekbench simulates the workloads that occur when performing real-world tasks, and takes into account both the capabilities of a single core and the efficiency of multiple cores running simultaneously. Thanks to this, the final results characterize well the capabilities of the processor in everyday use. In addition, the test is cross-platform and allows you to compare the CPUs of different devices (smartphones, tablets, laptops, PCs). The help information only lists the multi-core test values for CPU.