DDR

Updated: 12/26/2023 by Computer Hope

DDR may refer to any of the following:

DDR4 RAM

1. Short for double data rate, DDR is memory that utilizes 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. Today, most consumer electronics like printers, smartphones, tablets, gaming consoles, routers, servers, digital cameras, and Smart TVs can utilize DDR memory.

Note

None of the versions that succeeded DDR1 are forward or backward compatible. Meaning DDR2, DDR3, DDR4 and DDR5 memory modules cannot be used interchangeably with DDR1-equipped motherboards, or the other way around.

DDR version history

Layouts of the various versions of DDR memory.

The following list contains the different versions of DDR and their release dates. The image shows the slight variations in shape and layout of the DDR over its iterations.

  • DDR1 - The first commercially-available version of DDR memory was released by Samsung in June 1998.
  • DDR2 - The second generation of DDR memory was released in September 2003.
  • DDR3 - The third generation of DDR memory was released in June 2007.
  • DDR4 - The fourth generation of DDR memory was released in September 2014.
  • DDR5 - The fifth generation of DDR memory was released on July 14, 2020.

2. Short for dial-on-demand routing, DDR was developed by Cisco and is a routing technique that uses existing telephone lines to help form a Wide Area Network.

3. Short for Dance Dance Revolution, DDR is a popular arcade and console game where users must move their feet on a pad with dance moves displayed on a screen.

Computer abbreviations, Game terms, GDDR, Hardware terms, Memory terms, Network terms, Pumping, RAM, Rate, SDRAM