40 nanometers (nm) and 28 nanometers (nm) are code names for the chip manufacturing process, indicating the size or spacing of the components on the chip. Here are some differences between 40nm chips and 28nm chips:
1. Size: The component size of 40nm chips is larger than that of 28nm chips, that is, the spacing between components is larger. This means that a 40nm chip can accommodate fewer components on a chip of the same size.
2. Performance: 28nm chip has better performance than 40nm chip. The 28nm process technology provides higher integration and lower power consumption. This means that at the same size, 28nm chips can accommodate more transistors, resulting in higher performance.
3. Power consumption: 28nm chip has lower power consumption than 40nm chip. Smaller component sizes and optimized process technology make the flow of current through the chip more efficient, thus reducing power consumption.
4. Cost: In general, newer process technologies (e.g. 28nm) tend to be more expensive than older technologies (e.g. 40nm). This is because more research and development and equipment costs are required when developing new process technologies.
To sum up, 28nm chips have better performance and low power consumption compared to 40nm chips, but the manufacturing cost is relatively high. The choice of which chip process to use depends on the requirements and cost factors of the specific application.
The size of the chip radius directly determines the size and storage capacity of the chip. The former storage is larger, the cost of mobile phone transplantation increases, but the memory is larger, the function and computing power is more powerful.