Learn about double data rate (DDR) memory key concepts and applications surrounding this digital communication technique, where two data words are transferred during one clock cycle.

Double Data Rate (DDR) is a type of memory technology used in computers and other electronic devices to increase performance.

Short for Double Data Rate, DDR is memory that uses both the rising and falling edge of the system clock, potentially doubling its speed. The first version, sometimes called DDR1, was only used on high-end video cards and desktop computer memory.

DDR RAM, or Double Data Rate Random Access Memory, is computer memory that enhances speed and efficiency of your PC. DDR is the more advanced sibling of the older SDR (Single Data Rate) series, and has shown its worth.

DDR stands for Double Data Rate. It refers to a type of synchronous dynamic RAM (SDRAM) that transfers data on both the rising and falling edge of each clock cycle — effectively doubling throughput compared to older single data rate (SDR) memory.

Several of the GDR's leaders, notably its last communist leader Egon Krenz, were later prosecuted for offenses committed during the GDR era. The official name was Deutsche Demokratische Republik ('German Democratic Republic'), usually abbreviated to DDR (GDR).

DDR stands for Double Data Rate, and basically, it means that they are capable of two reads and two write tasks per clock cycle. This is what all generations have in common, but logically each new generation has been implementing changes and improvements that make them technically very different.