What is L1 Cache?

The first-level cache is L1 Cache. Integrated in the CPU, it is used for the temporary storage of data while the CPU is processing data. Because the cache instructions and data work at the same frequency as the CPU, the larger the capacity of the L1 level cache cache, the more information is stored, which can reduce the number of data exchanges between the CPU and memory, and improve the CPU's computing efficiency. However, because the cache memory is composed of static RAM, the structure is more complicated. With limited CPU chip area, the capacity of the L1 cache cannot be too large.