DIY From Getting Started to Giving Up: Isn't the higher the CPU frequency, the better?

Whether it is a computer or a mobile phone, it is promoting CPU What is the meaning of this indicator and how does it affect performance? The answer is very important.

One of the core performance indicators of the CPU is the frequency of the CPU, which is often referred to as the main frequency. Its official name is the CPU clock frequency, which refers to the number of vibrations per second of an oscillator inside the CPU. For example, The CPU is like the brain of a computer. It executes a series of tiny operation instructions to complete complex computing tasks, and the CPU frequency is like the "operation frequency" of the brain.

The unit of CPU frequency is usually Hertz (Hz). With the great progress of technology, Hz has been far behind the speed of CPU performance improvement. Modern CPUs usually use Gigahertz (GHz) as the unit. For example, Intel Core i5 -13490F processor Its main frequency is 2.5GHz, which means that it will generate 2.5 billion pulse signals every second.

As mentioned earlier, each pulse signal of the CPU is like executing a command, instructing the CPU to perform a basic operation. Therefore, the higher the CPU frequency, the more instructions that can be processed per second theoretically, and the faster the computer's work efficiency and running speed will be.

However, considering the performance and power consumption, the CPU does not need to work at a high frequency all the time, or sometimes needs higher performance. Therefore, there is a dynamic acceleration technology such as TurboBoost, which allows the CPU to temporarily increase the working frequency under specific conditions to meet the demand of instantaneous high load.

Similar to Remax, overclocking means that the user adjusts the operating frequency of the CPU to be higher than the factory set value, in order to extract additional performance. Although overclocking can improve the theoretical computing power of the CPU, it may also lead to problems such as decreased stability, increased heating and shortened life. CPU damage caused by overclocking will lose warranty, so it is not suitable for novices to try.

In addition, it should be noted that although the CPU frequency determines the performance basis, it is not simple that the higher the frequency, the stronger the performance. In the multi-core era, it is no longer accurate to rely solely on the CPU frequency to judge performance. Modern applications are often designed to run on multiple threads, making full use of multiple CPU cores to process tasks at the same time. This means that even if the frequency of a single core is low, if there are more physical cores or logical cores, and Software It supports parallelization and may also achieve better overall performance in practical applications.

In addition, excessive frequency will also bring about problems of heat dissipation and energy consumption. Therefore, when pursuing high performance, you can choose newer CPUs. A higher architecture can bring better energy efficiency performance, as well as better CPU performance, multi-core collaboration ability and performance.

This article is an original article. If it is reproduced, please indicate the source: DIY From Getting Started to Giving Up: Isn't the higher the CPU frequency, the better? https://diy.zol.com.cn/859/8598801.html