There is a significant difference in size between 3nm chips and 28nm chips. A 3nm chip is smaller than a 28nm chip, meaning it can fit more transistors in the same area. This allows the 3nm chip to have higher integration and more powerful computing power. In addition, 3nm chips are also able to provide greater energy efficiency because they can operate at lower voltages. In general, 3nm chips are a more advanced and higher performance technology than 28nm chips.
The size comparison between 3nm chip and 28nm chip is very large. The 3nm chip is one of the most advanced chip processes, and its transistor size is very small, which can accommodate millions of transistors per square millimeter. In contrast, the transistor size of a 28nm chip is much larger, and can only fit thousands of transistors per square millimeter.