Question

cache memory is faster memory but why
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Answer 1

Answer:

cache memory is faster memory because it is faster than any other memory and other memory are slower than cache memory

Answer 2

Answer:

The memory is needed since the CPU is getting faster than RAM is, so the cache is much faster the RAM. The CPU cache is also known as SRAM - again it's much faster - but it takes up more space. The cache is used for storing cpu instructions and such whiles RAM stores the less frequently accessed data.