. The logical density of the number of transistors in the 3-nanometer chip production process can be 1.7 times higher than that of the 4-nanometer chip, which will bring 11% performance improvement, but the ARM architecture of the mobile phone chip and the X86 architecture of the PC chip are essentially very different. Although the number of cores is large, the transistor size and computing unit of each core of the mobile phone chip cannot be compared with the PC chip. And the out-of-order execution architecture used by the PC chip is more complex, the number of transistors required is more, in addition, the mobile phone chip is limited by the chip area, the cache capacity is very small, far from the one or two or three levels of the PC chip cache, the configuration of dozens of mb capacity, so the single core performance of the PC chip is much stronger than the mobile phone chip.