Question

2. SRAM is efficient and fast, but is very expensive ​

Answer 1

Answer:

The term static differentiates SRAM from DRAM (dynamic random-access memory) which must be periodically refreshed. SRAM is faster and more expensive than DRAM; it is typically used for CPU cache while DRAM is used for a computer's main memory.

Answer 2

Answer:

The term static differentiates SRAM from DRAM (dynamic random-access memory) which must be periodically refreshed. SRAM is faster and more expensive than DRAM; it is typically used for CPU cache while DRAM is used for a computer's main memory.

Explanation:

SRAM performance is really fast but SRAM is expensive, so typical values of L2 and L3 cache are 1MB to 8MB. The most common application of DRAM — such as DDR3 — is volatile storage for computers. While not as fast as SRAM, DRAM is still very fast and can connect directly to the CPU bus.