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AMD sent HD 4830 samples to reviewers with missing shaders

Discussion in 'Articles' started by W1zzard, Oct 22, 2008.

  1. in_awe New Member

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    Check out the second half of the Testing section in the first post of this thread. W1zzard shows the results of gradually disabling the SIMD units on a 4850.
     
  2. W1zzard

    W1zzard Administrator Staff Member

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    i still have the card. it doesnt matter for this part of the conversation anyway.

    at this time i'm not willing to disclose how to reduce the number of shaders

    edit: thread has been cleaned up

    edit2: there is no "program" to do it
     
    Last edited: Apr 28, 2009
  3. lemonadesoda

    lemonadesoda

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    I welcome your question. Never mind about it being an old thread. It is relevant and topical, and your question is better placed here than starting a new thread and having to do a whole lot of explaining. I hope w1z can share some insights...

    And welcome to TPU. :pimp:


    Shady dealer
     
  4. in_awe New Member

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    Thank you for the reply W1zzard (and for cleaning up the thread). Do you plan to release that information at some point in the future, or perhaps include it as part of a tweaking program? The low-power freaks like me would greatly appreciate it. Or are you planning on keeping it to yourself forever? (cue evil laugh)

    Of course, I just realized it may be a hardware hack, which would exclude me from using it. I'm completely inept when it comes to using a soldering iron.
     
  5. W1zzard

    W1zzard Administrator Staff Member

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    as tweaking program might be possible in the future.

    it's not a hardware hack, it can be done in realtime, even while the card is rendering.

    i doubt there is that much to be gained power consumption wise. it is definitely not 50% for going to half the shaders. educated guess might be 5%
     
    in_awe says thanks.
  6. in_awe New Member

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    OK, thanks. I was just guessing on the idle power usage based on your original AMD 4830 review (with only 560 shaders) versus your PowerColor 4830 review. The AMD 4830's idle usage was close to 4670 levels. Achieving 4670 levels with a 4850 or one of the new 4770s would be awesome.
     

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