Which is more powerful, a processor with a main frequency of (MHz)3000 or a processor with a main frequency of (MHz) 1500? Don't laugh at me?

The main frequency is the clock frequency of CPU, which is simply the abbreviation of CPU working frequency (1 sec). The unit is hertz. It determines the running speed of the computer. With the development of computer, the main frequency has developed from the past MHZ to the present GHZ( 1G= 1024M). Generally speaking, in the same series of microprocessors, the higher the main frequency means the faster the computer speed, but for different types of processors, it can only be used as a parameter for reference. In addition, the running speed of CPU depends on the performance indexes of CPU pipeline. Because the main frequency does not directly represent the running speed, in some cases, it is likely that the higher the main frequency, the lower the actual running speed of CPU. So the main frequency is just the performance of CPU.

One aspect, but not the overall performance of CPU.

When it comes to processor frequency, it is necessary to mention two concepts closely related to it: frequency doubling and external frequency. The external frequency is the reference frequency of the CPU, and the unit is also Hz. External frequency is the speed at which CPU and motherboard run synchronously, and it is also the speed at which memory and motherboard run synchronously in most computer systems at present. In this way, it can be understood that the external frequency of CPU is directly connected with memory to realize the synchronous operation of the two. Frequency doubling is a multiple of the ratio of main frequency to external frequency. Main frequency, external frequency and frequency doubling, their relationship is: main frequency = external frequency × frequency doubling. Early CPU did not have the concept of "frequency doubling". At that time, the main frequency and the speed of the system bus were the same. With the development of technology, the speed of CPU is faster and faster, and accessories such as memory and hard disk can't keep up with the speed of CPU. The emergence of frequency doubling solves this problem, which can make the 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 (theoretically). We can regard external frequency as a production line in the machine, and frequency doubling is the number of production lines. The production speed (main frequency) of a machine is naturally the speed of the production line (external frequency) multiplied by the number of production lines (frequency doubling). At present, manufacturers have basically locked in frequency doubling. If you want to overclock, you have to start with the external frequency, set the jumper of the motherboard or set the soft overclocking in the BIOS by combining frequency doubling and external frequency, so as to improve the overall performance of the computer. So try to pay attention to the external frequency of CPU when purchasing.