AMD Cayman Architecture article online

Article: AMD's Cayman GPU Architecture
By: Vincent Diepeveen (diep.delete@this.xs4all.nl), December 17, 2010 7:31 am
Room: Moderated Discussions
Richard Cownie (tich@pobox.com) on 12/16/10 wrote:
---------------------------
>an (an@yahoo.com) on 12/16/10 wrote:
>---------------------------
>>It doesnt sound like there would be much (any?) reason to go for the AMD solution
>>over Nvidia for someone looking to compute on gpus? Am I missing something?
>
>Probably not much technical reason. So far it seems as
>though NVidia's marketing approach has been to cripple
>double-precision throughput in consumer-price products,
>and if you have to pay $2500 for the card instead of $400
>that could make the difference, depending on your app
>and other constraints.
>

The technical explanation from how i understood it, is that it is not crippling double precision at all. It's basically having other hardware transistors where the bandwidth goes to for the videocards, so you cannot use that bandwidth for gpgpu in such case, which is possible at tesla.

As a result all gpgpu of course is really having ugly performance at nvidia something like 25%-30% IPC effectively for the videocards, versus 50% for AMD.

I assume fermi you also easily get 50% at.

It is true that CUDA is more attractive for whatever stuff AMD has showed up with. We must be grateful that such powerful gpu's can be used quite effective for gpgpu as well, as we can see with tesla, the price is otherwise very high for those with little budget.

Vincent
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TopicPosted ByDate
AMD Cayman Architecture article onlineDavid Kanter2010/12/15 07:39 AM
  AMD Cayman Architecture article onlineBryan Catanzaro2010/12/15 12:25 PM
  AMD Cayman Architecture article onlineCarsten Spille2010/12/15 02:51 PM
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        AMD Cayman Architecture article onlineEduardoS2010/12/16 01:54 PM
          AMD Cayman Architecture article onlineDavid Kanter2010/12/16 03:46 PM
            AMD Cayman Architecture article onlineEduardoS2010/12/16 06:03 PM
    AMD Cayman Architecture article onlineVincent Diepeveen2010/12/17 07:16 AM
  AMD Cayman Architecture article onlinean2010/12/16 12:39 PM
    AMD Cayman Architecture article onlineRichard Cownie2010/12/16 01:51 PM
      AMD Cayman Architecture article onlineVincent Diepeveen2010/12/17 07:31 AM
        AMD Cayman Architecture article onlineRichard Cownie2010/12/17 09:22 AM
    AMD Cayman Architecture article onlineEduardoS2010/12/16 02:01 PM
      AMD Cayman Architecture article onlinean2010/12/16 02:43 PM
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            AMD Cayman Architecture article onlinehobold2010/12/16 03:56 PM
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        AMD Cayman Architecture article onlineVincent Diepeveen2010/12/17 06:56 AM
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          Transpose/RotateMoritz2010/12/25 05:33 AM
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