Double Data Rate Synchronous Dynamic Random Access Memory is a class of memory integrated circuits, used in computers. Double Data Rate Synchronous Dynamic Random Access Memory has an interface which makes higher transfer rates possible by strict control of the timing of the electrical data and clock signals. The Dynamic Random Access Memory allows data transfer in a rate of 64 bits at a time and gives a transfer rate of memory bus clock rate X 2 for dual rate X 64 numbers of bits transferred/ 8 numbers of bits/byte. Double Data Rate Synchronous Dynamic Random Access Memory gives a maximum transfer rate of 5328 MB/s, with a bus frequency of 333MHz.