1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

News JEDEC announces DDR5, NVDIMM-P standards

Discussion in 'Article Discussion' started by Gareth Halfacree, 31 Mar 2017.

  1. Gareth Halfacree

    Gareth Halfacree WIIGII! Staff Administrator Super Moderator Moderator

    Joined:
    4 Dec 2007
    Posts:
    11,049
    Likes Received:
    1,067
  2. Guest-16

    Guest-16 Guest

    Oh I missed this! At least we're getting DDR5. At the time of DDR4 launch it wasn't even on the cards. Details pretty thin other than 'it's gonna be double and better' though
     
  3. Kruelnesws

    Kruelnesws New Member

    Joined:
    7 Jan 2012
    Posts:
    37
    Likes Received:
    1
    OK, so I'm going to be that guy that's asking a dumb question. Don't we already have DDR5 and 5X in GPUs? What's the diff besides that one is for GPU and one is for CPU?
     
  4. Gareth Halfacree

    Gareth Halfacree WIIGII! Staff Administrator Super Moderator Moderator

    Joined:
    4 Dec 2007
    Posts:
    11,049
    Likes Received:
    1,067
    GDDR and DDR are two separate standards (though they're both from JEDEC, and they both share certain features - including both being types of double data rate dynamic memory.) Basically, GDDR is a standards family for SGRAM (Synchronous Graphics Random Access Memory) and DDR for SDRAM (Synchronous Dynamic Random Access Memory.) What makes good SGRAM doesn't make good SDRAM, and vice-versa - hence the two different standards.
     
  5. faugusztin

    faugusztin I *am* the guy with two left hands

    Joined:
    11 Aug 2008
    Posts:
    6,814
    Likes Received:
    242
    GDDR5/GDDR5X is based on DDR3.
     
  6. Corky42

    Corky42 What did walle eat for breakfast?

    Joined:
    30 Oct 2012
    Posts:
    8,649
    Likes Received:
    214
    DDR targets low latency, GDDR targets high bandwidth.

    With DDR you want the ability to move small amounts of data really fast, with GDDR you want the ability to move large amounts of data (textures, etc, etc) quickly.
     

Share This Page