Synchronous DRAM

Double Data Rate (DDR)

This name means data transfers on both the rising and falling edge of the clock, thereby getting twice as much bandwidth as you might expect based on the clock rate and the data width.

DDR4 is the latest version of this technology.

  • A DDR4-3200 DRAM can do 3,200 million transfers per second, which means it has a 1600-MHz clock