Difference of DRAM from SRAM

DRAM or Dynamic Random Access Memory is the main memory and needs constant refreshing making it slower while SRAM or Static Access Random Memory is the cache memory that does not need refreshing but it is thus more expensive.

DRAM is physically stored on Dual Inline Memory Module (DIMMs) having a 64 bit path that uses EDO or Extended Data Output and (Single Inline Memory Module) SIMMs with a data path of 32 bits and comes in a variety of ways such as PFM or the Fast Page Mode while SRAM is housed on the system board on Cash on a Stick (COAST) modules or single chips or included inside the processor case.