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  1. #1
    Member JonSimonzi's Avatar
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    4890... DDR5 or GDDR5... Same or different?

    Looking at 4890s, I'm seeing the memory listed differently on them. Like this comparison. One lists it as 1gb GDDR5, and the other lists it as 1gb DDR5. I know the "G" just stands for "Graphics", but I just want to make sure they're the same thing, just listed differently on a website. Thanks.
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  2. #2
    Great Scot! Member sandyduff's Avatar
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    Yup... same thing
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  3. #3
    Member jokers_greg's Avatar
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    Quote Originally Posted by JonSimonzi View Post
    Looking at 4890s, I'm seeing the memory listed differently on them. Like this comparison. One lists it as 1gb GDDR5, and the other lists it as 1gb DDR5. I know the "G" just stands for "Graphics", but I just want to make sure they're the same thing, just listed differently on a website. Thanks.
    yep they meant the same thing (GDDR5), maybe type-o
    Last edited by jokers_greg; 06-11-09 at 03:02 PM.
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  4. #4
    Member Quailane's Avatar
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    They mistakenly labeled it DDR5. There is a big difference between DDR5 and GDDR5.
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  5. #5
    Great Scot! Member sandyduff's Avatar
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    Quote Originally Posted by Quailane View Post
    They mistakenly labeled it DDR5. There is a big difference between DDR5 and GDDR5.
    True... but in this case it is referring to the same thing, when it comes to graphics cards... its GDDR
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  6. #6
    has to be a typo. ddr5 doesn't exist yet.

  7. #7
    Member Quailane's Avatar
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    Quote Originally Posted by sandyduff View Post
    True... but in this case it is referring to the same thing, when it comes to graphics cards... its GDDR
    Which is why I said it was labeled wrong.
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  8. #8
    Member JonSimonzi's Avatar
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    Quote Originally Posted by Quailane View Post
    They mistakenly labeled it DDR5. There is a big difference between DDR5 and GDDR5.
    That's what I figured. Just wanted to make sure though.
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  9. #9
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    I bet DDR5 exists, it just isn't used in anything mainstream.

    The G stands for Graphics (used to be a V, for video, in VRAM), it means essentially that there are two ports on the memory instead of one, which means that on one clock cycle it and both read and write to the ram. DDR and such you can read or write.

    You aren't going to find a 48xx with DDR though.
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  10. #10
    Member Quailane's Avatar
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    Quote Originally Posted by Bobnova View Post
    I bet DDR5 exists, it just isn't used in anything mainstream.

    The G stands for Graphics (used to be a V, for video, in VRAM), it means essentially that there are two ports on the memory instead of one, which means that on one clock cycle it and both read and write to the ram. DDR and such you can read or write
    There is a lot of confusion about this. DDR4 is currently being designed and is supposed to be out 3 years from now. DDR5 isn't even on the roadmap. While the separate read/write pins are a feature of GDDR3, 4, and 5, there is a lot more to it than that. While GDDR3 is the successor to GDDR2, GDDR4 is the successor to GDDR3, and so on, the numbering is not homologous to any DDR designation. DDR2 memory is actually more advanced than GDDR2 memory, and DDR3 memory is more advanced than GDDR3 memory. Of course there will be some similarities between the two lines as memory technology progresses, but the G is not the graphics version of the desktop memory.
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  11. #11
    Member Shiggity's Avatar
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