"DDR is an abbreviation for "Double Data Rate". DDR SDRAM doubles the data rate of current memory technology by sending two data segments per clock cycle instead of one which is what PC-133 SDRAM uses. DDR SDRAM like SDR SDRAM uses the currant 64bit technology over Rambus's 16bit RDRAM burst technology. The Amazing thing about DDR is its peak bandwidth, 2.1GB per second. This is more than Intel's 820 Chipset with RDRAM could ever produce. DDR works by using both the rising and the falling edge if the clock signal to send and receive data simultaneously."
FULL STORY @ TWEAKTOWN (http://www.tweaktown.com/reviews/iwill_ka266r/)