7 nanometer chip refers to the chip etching a piece of the smallest unit electric crystal size is 7nm, advanced etching technology can also reduce the resistance between the transistors, so that the CPU required voltage is reduced, so that the power required to drive them is also greatly reduced, effectively reducing power consumption and heat. Therefore, the 7-nanometer chip not only means that the size area is smaller, but also the performance of all aspects will be improved between generations.