What is The Difference Between SDRAM and DDR

Answer Posted / raj kr. goswami

SD-RAM

1)Minimum storage capacity of is 32 MB MAX 512 MB

2)The minimum data transfer speed or frequency 66 MHZ and
max 166 MHZ

3)The pin no is 128

4)Storage capacity and frequency is less

5)Synchronous Dynamic Random Access Memory


DDR- RAM

1)Minimum storage capacity of is 64 MB MAX 1GB onwards

2)The minimum data transfer speed or frequency 200MHZ and
max 667 MHZ

3)The pin no is 168,172,184,192

4)Storage capacity and frequency is more

5)Double Data Rate Random Access Memory

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