AMD Cayman Architecture article online

Article: AMD's Cayman GPU Architecture
By: David Kanter (dkanter.delete@this.realworldtech.com), December 16, 2010 3:46 pm
Room: Moderated Discussions
EduardoS (no@spam.com) on 12/16/10 wrote:
---------------------------
>Ping-Che Chen (pcchen@kimicat.com) on 12/16/10 wrote:
>---------------------------
>>One important use of a write cache is global atomic operations. However, Cypress
>>and Cayman have a separate GDS for that, and their global atomic operations are faster than Fermi AFAIK.
>
>On Cypress local atomics are much faster, but still brain dead for some of the
>porpouses of atomics, global atomics are f***ing slow, a bit slower than Fermi, no idea about Cayman.

Global atomics are actually must faster on Cypress if you use GDS. Roughly 5X Fermi performance:

http://www.beyond3d.com/content/reviews/55/14

However, if you are using atomics in memory, then Fermi's cache is about 3X faster overall.

David
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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
  AMD Cayman Architecture article onlineDaveC2010/12/15 05:17 PM
    AMD Cayman Architecture article onlineAntti-Ville Tuunainen2010/12/16 01:13 AM
      AMD Cayman Architecture article onlinePing-Che Chen2010/12/16 02:39 AM
        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
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      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 onlineDavid Kanter2010/12/16 03:48 PM
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