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Today, I will talk to you about how to calculate the main frequency of cpu. Many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

The main frequency of cpu is equal to external frequency multiplied by frequency doubling, and any increase in external frequency and frequency doubling can increase the main frequency of CPU; the main frequency is also called clock frequency, the unit is Hz, which is used to represent the operation speed of CPU; the higher the main frequency is, the faster the computer is.

Operating environment of this article: Windows7 system, DELL G3 computer

What is the dominant frequency of cpu multiplied by what?

The dominant frequency of the cpu is equal to the external frequency multiplied by the frequency doubling.

The multiplication of the external frequency and the frequency doubling is the main frequency, so any one of them can increase the main frequency of the CPU.

The relationship between main frequency, external frequency and frequency doubling is as follows: main frequency = external frequency × frequency doubling.

Main frequency introduction:

The main frequency is also called the clock frequency, in Hz, which is used to represent the operation speed of the CPU. It determines the running speed of the computer, with the development of the computer, in the same series of microprocessors, the higher the main frequency represents the faster the speed of the computer, but for different types of processors, it can only be used as a reference. In addition, the operation speed of CPU also depends on the performance indicators of all aspects of the CPU pipeline. Because the main frequency does not directly represent the operation speed, under certain circumstances, the actual operation speed of CPU with higher main frequency is likely to be lower. Therefore, the dominant frequency is only one aspect of the performance of CPU, and does not represent the overall performance of CPU.

External frequency and frequency doubling

The working frequency (main frequency) of CPU consists of two parts: external frequency and frequency doubling, the product of which is the main frequency. The full name of frequency doubling is frequency doubling coefficient. There is a ratio relationship between the main frequency and the external frequency of CPU, which is the frequency doubling coefficient, or frequency doubling for short. Frequency doubling can range from 1.5 to 23 or higher, with an interval of 0.5. The multiplication of the external frequency and the frequency doubling is the main frequency, so any one of them can increase the main frequency of the CPU. The relationship between main frequency, external frequency and frequency doubling is as follows: main frequency = external frequency × frequency doubling.

The processor dominant frequency is calculated by millions of runs per second of the processor cycle. In general, processors with higher MHz or GHz can improve the performance of computers running innovative, entertainment, communications, and productivity applications. However, the main frequency is only one aspect that affects the overall performance of the system, and the overall performance of the machine with high main frequency is not necessarily high.

With the development of technology, the speed of CPU is getting faster and faster, memory, hard disk and other accessories gradually can not keep up with the speed of CPU, and the emergence of frequency doubling solves this problem, it can make memory and other components still work at a relatively low system bus frequency, and the main frequency of CPU can be infinitely improved by frequency doubling (in theory). We can regard the external frequency as a production line in the machine, and the frequency doubling is the number of the production line. The production speed of a machine (main frequency) is naturally the speed of the production line (external frequency) multiplied by the number of production lines (frequency doubling). Manufacturers have basically locked up the frequency doubling, and the only way to overclock is to start from the external frequency, through the collocation of frequency doubling and external frequency to jumper the motherboard or to set soft overclocking in the BIOS, so as to improve the overall performance of the computer. Therefore, when buying, we should try to pay attention to the external frequency of CPU.

After reading the above, do you have any further understanding of how to calculate the dominant frequency of cpu? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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