Refers to the transistor gate width inside the chip, basically the same.
Nanometers for chip metrology refers to the gate width of the smallest unit silicon transistor inside the chip. The nanometer itself is a unit of physical length, and the size of the transistor is more appropriately measured in nanometers, so the crystal process is expressed in nanometers. The transistor itself has a fixed structure, such as the electrostatic fin structure and the encircling structure. And the function of the transistor is to power on and off, so the transistors are the same, the difference is the overall arrangement of the transistor circuit design.