16th October 2019

techtarget
13

What is the difference between dynamic RAM and static RAM?

Also see RAM types. SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed.

Moreover, why is static RAM so expensive?

Static RAM uses a completely different technology. This makes static RAM significantly faster than dynamic RAM. However, because it has more parts, a static memory cell takes a lot more space on a chip than a dynamic memory cell. Therefore you get less memory per chip, and that makes static RAM a lot more expensive.

Which is faster static or dynamic RAM?

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.

Which is faster Sdram or DRAM Why?

SRAM is Static RAM and is 'static' because the memory does not have to be continuously refreshed like DRA or Dynamic RAM. SRAM is faster but also more expensive and is used inside the CPU. SDRAM is Synchronous DRAM. Computers today use DDR or Dual Data Rate DRAM, which improves performance over Single Data Rate DRAM.
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