Double Data Rate (a type of random access memory see RAM)--The next generation of the current SDRAM. DDR finds its foundations on the same design core of SDRAM, yet adds advances to enhance its
speed capabilities. As a result, DDR allows data to be sent on both the rising and falling edges of
clock cycles in a data burst, delivering twice the bandwidth of standard SDRAMS. DDR essentially doubles the memory
speed from SDRAMs without increasing the clock frequency.