AMD Catalyst 13.8 BETA (13.200.0.0 July 23)

Discussion in 'Videocards - AMD Radeon Drivers Section' started by asder00, Aug 1, 2013.

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  1. yasamoka

    yasamoka Ancient Guru

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    Reduced FPS? That might have been the case a decade ago, when we never had enough VRAM.

    BF3 has triple buffering enabled by default.

    To all those who cap at 59, don't you notice the hitch every second as a frame is duplicated? It slaughters me.

    FPS cap at refresh rate and VSync have the same smoothness, the same frame times. FPS cap doesn't sync GPU to refresh rate so you will get tearing in a specific area.

    The solution to that tearing is VSync but that introduces input lag. Capping FPS reduces that lag but you still get input lag.

    You can't win it all.
     
    Last edited: Aug 7, 2013
  2. The Mac

    The Mac Ancient Guru

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    tripple buffering will reduce the lag introduced by vsync.

    thats its purpose.
     
  3. yasamoka

    yasamoka Ancient Guru

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    Depends on implementation and more often than not its a Flip Queue that could increase input lag.
     
  4. The Mac

    The Mac Ancient Guru

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    i mean actual tripple buffering forced from directx.

    Some developers use flip-que or render-ahead and call it tripple buferring which annoys the hell out of me.

    I just always disable any TB in game and force it through dxtory or radeon pro.
     

  5. pokerapar88

    pokerapar88 Ancient Guru

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    So the answer would be to have 3x Titans and a 120hz monitor with capped fps at 119 so as to have the tearing less noticeable?

    :p

    lol

    wish I could have 60+fps in every game :S
     
  6. Pill Monster

    Pill Monster Banned

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    Howcome you use vsync and fps cap? Vsync already caps frame rate at refresh rate so capping as well does nothing.

    Btw capping fps doesn't create lag because it doesn't have any effect until fps hit the limit, vsync does.
     
  7. yasamoka

    yasamoka Ancient Guru

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    Does RadeonPro force true triple buffering? I don't think so.
     
  8. The Mac

    The Mac Ancient Guru

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    yes. real dx triple buffering.
     
  9. yasamoka

    yasamoka Ancient Guru

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    Empirically, capping FPS reduces VSync input lag. I don't know why, might have to do with the cap forcing games not to render additional frames and buffer them.

    @The Mac: wouldnt GPU usage remain at 99% with true Triple Buffering?
     
  10. The Mac

    The Mac Ancient Guru

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    yes, it does
     

  11. yasamoka

    yasamoka Ancient Guru

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    It doesn't here.
     
  12. The Mac

    The Mac Ancient Guru

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    hmm...i dunno why not, it does on mine.

    are you using dynamic vsyc?

    dont forget its only for dx9.

    You also appear to be using xfire, so there could be a scaling issue in there a well.
     
    Last edited: Aug 7, 2013
  13. Stukov

    Stukov Ancient Guru

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    Anyone get screen flickering when video starts and stops?
     
  14. ToBbErT

    ToBbErT Member Guru

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    I always clean up after uninstalling the catalyst driver. This time i used Wagnard's uninstaller. Previous ive been using atiman and driver fusion. Always the same problem with the tearing so i doubt there's a leftover causing any trouble.
     
  15. yasamoka

    yasamoka Ancient Guru

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    Nope, I test with single GPU.

    Using its regular VSync option.

    Hmmm only for DX9? I'll try it out.

    Is it true that you get the same input lag as a VSync disabled setup?
     

  16. ToBbErT

    ToBbErT Member Guru

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    Thx for the info yasamoka. I wil revert my driver and try using both vsync and frame cap and see what happens.
     
  17. The Mac

    The Mac Ancient Guru

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    close, not exactly but a hell of a lot better than without it.

    Some games are more sensitive than others. I find UE3 games are pretty laggy without it.

    yes, dx9 only.

    MS took it out of dx10/dx11 because the delvelopers were supposed to institute it in their game engines.

    yeah right.
     
    Last edited: Aug 7, 2013
  18. eclap

    eclap Banned

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    I know when to enable/disable it. I leave it off because it introduces input lag. I only enable it if the tearing is terrible. which is the case in GW2. most games I don't use it.
     
  19. eclap

    eclap Banned

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    vsync doesn't always drop to half/quarter etc fps when it can't hold screen's refresh rate. I run GW2 with tripple buffering which helps to keep the fps at what they would be without vsync.

    EDIT: I see others have covered triple buffering too.

    what???
     
  20. eclap

    eclap Banned

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    I'm forcing triple buffering via radeon pro in GW2, just checked in Lion's Arch (very busy area), gpu usage 99%, 41fps
     

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