For this matter, the nanometer of the processor refers to the size of the process used to manufacture the processor. Nanometer stands for 10 to the minus ninth power, that is, one nanometer is equal to one billionth of a meter. Therefore, the smaller the nanometrics of the processor, the more advanced the manufacturing process, and the more transistors and circuits can be integrated in the same chip area, achieving higher performance and lower power consumption.
For example, compared with 14nm and 10nm processors, 10nm processors can integrate more transistors and circuits, while also consuming less power and providing better performance.