comparison between sram and dram

SRAM

DRAM

It is static random access memory

It is dynamic random access memory

Sram store information as long as power is supplied

Dram store information for few millisecond even after when power is applied

Sram is made up of flip flop and many transistor

Dram  is made up of capacitor and few transistor

In sram BIT stored in the form of voltage

In dram stored in the form of electric charge

Sram has no leakage property so does not need to be refreshed

dram has leakage property so need to be refreshed

Sram consume more power

dram consume less power

Scram is faster than dram

Dram is slower than dram

Sram is expensive

dram is cheaper

Sram size of memory cell is large

dram size of memory cell is small

Sram is low density

dram is high density

Sram is used in Cache memory

dram is used in DDR,DDR2,DDR3