Graphics I'm curious!

Discussion in 'Hardware' started by Ravenheart, 6 May 2010.

  1. Ravenheart

    Ravenheart What's a Dremel?

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    As to why GTX 470 and 480 cards only have a Memory bus of 320 Bit when older cards such as my GTX 275 has a 448-Bit Memory Bus, I know the GTX 470 and 480 will no doubt be faster but why has the Memory bus been decreased, i've always wondered about that so thought I'd ask :)
     
    Ravenheart, 6 May 2010
    #1
  2. Pete J

    Pete J Employed scum

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    The first thought I had when I read the title of this thread was 'well, if you feel that way you should explore your true feelings' ;) .

    Anyway, I think it's something to do with the shift from GDDR3 to GDDR5.
     
    Pete J, 6 May 2010
    #2
  3. rollo

    rollo Modder

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    Gddr5 doesn't need the same memory bandwidth

    And most cards are not memory capped pre 2500+ Rez
     
    rollo, 6 May 2010
    #3
  4. smc8788

    smc8788 Multimodder

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    Yeah, the older cards needed a higher memory bandwidth to keep up with the ATI cards since they used slower GDDR3 memory.
     
    smc8788, 6 May 2010
    #4

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