Models, such as Intel's Core series, are divided into three levels: i7, i5 and i3. Under normal circumstances, i7 & gti5 & gtI3 certainly does not mean that i5 is necessarily better than i3, depending on which generation it is, the i3 of the 8th generation is not worse than the i5 of the 6th generation.

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The number of cores, under the same configuration, the more cpu cores, the stronger the ability to process data.

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The main frequency is also an important index to test the quality of cpu. Generally speaking, the higher the main frequency, the better the cpu.

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There are also the number of threads and caches. Like the main frequency, the more threads, the higher the L3 cache and the better the cpu quality.