Nvidia and AMD Cross Multi GPU Tested In DirectX 12

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Oct 26, 2015.

  1. 0blivious

    0blivious Ancient Guru

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    If nothing else, in a few years, this will be pretty cool for those skeleton builds from old PC parts.

    Video cards, especially high end ones, become obsolete very quickly. They require a lot of power and once they age past a certain point, it's hard to find a buyer/home for them since most who'd be interested, with a rig capable of running a high end video card are already using same/newer tech.

    Having the ability to use two video cards from varying manufacturers could breathe some new life into these old, obsolete cards.

    That said, I always use a single video card myself.
     
  2. Athlonite

    Athlonite Maha Guru

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    I'd like to know why does it require a DirectX 12 game for this to work it should have been built into windows 10 and available for all game regardless the engine running the game maybe directX 10 and up would have been a better thought
     
  3. Fox2232

    Fox2232 Ancient Guru

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    But nVidia is still able to detect presence of AMD drivers/HW ID...
     
  4. Lowice

    Lowice Active Member

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    Sad a monster card like 980ti and fury get so low fps... Still sticking to 1080p then since I do not like to play with under 60fps.
     

  5. leszy

    leszy Master Guru

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    The main thing is that thanks to this feature, we can simultaneously use dGPU and iGPU of APU. Incoming ZEN APU can be the best gaming processor.
     
  6. Redemption80

    Redemption80 Ancient Guru

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    Nice to see this being attempted, and as each vendor has strengths that the other lacks you can see how it could be used well.

    Don't see it taking off though, multi GPU gaming is annoying enough as it is without mixing drivers from two GPU's.

    Maybe I missed it, but couldn't see anything mentioning how the vram situation works with this, 4GB if mixing a 980ti with a Fury X, what about HBM?
     
    Last edited: Oct 27, 2015
  7. mR Yellow

    mR Yellow Ancient Guru

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    The point is you could add a spare relatively cheap dx12 card to your rig to get a boost.
     
  8. Fox2232

    Fox2232 Ancient Guru

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    SFR/Tile Based rendering is one thing I need before I'll consider multi GPU, even if that is at cost of part of performance due to post-processing taking place afterwards. Reducing fps a bit or at cost of having deeper flip queue than 1 or 2.

    But having 2 frame lag at 180fps is not bad at all in comparison to having 1 frame lag on 60 fps.
     
  9. ETAxDOA

    ETAxDOA Member

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    So two 7990's would....
    , act as four 7970's with 3gb per card (12gb total) :-D
    , or act as two 7990's with 3gb per card (6gb total) :)
    , or act as one card with 3gb :-(
    ???
     
  10. Seketh

    Seketh Ancient Guru

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    Actually, you're wrong. Microsoft demonstrated it themselves:

    [​IMG]
     

  11. blkspade

    blkspade Master Guru

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    Its not that it can't be done (its supposedly a theoretical possibility with DirectCompute), just that no one is doing it and its been an option since DX10. It's either ridiculously hard to code for, or devs aren't finding any incentive to do AI this way.
     
  12. fantaskarsef

    fantaskarsef Ancient Guru

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    QFT.

    Also, if you happen to have a Fury X and a 980Ti, and different games need different 'first' cards, it takes the practical use out of it. Not everybody can and wants to switch cards in his rig just because he's switching back and forth through games.

    Same as I stated with the first Ashes 'benchmarks', too early to take this results as true and fixed and 'never going to change'.
     
  13. ManofGod

    ManofGod Ancient Guru

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    Two thumbs up! :)
     
  14. Yecnot

    Yecnot Master Guru

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    Why not?
     
  15. ---TK---

    ---TK--- Ancient Guru

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    Sli has support for many many games.
     

  16. Merlena

    Merlena Active Member

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    The way I feel it... You never know what nVidia can cook together, even if its good or bad. But it wouldn't surprise me if nVidia just came with some hidden code with a long-worked on driver that will reveal features we don't even know about.. :S or really I got no idea. But the GPU market and competition these days are more unpredictable than.. god damn anything.
     
  17. Barry J

    Barry J Ancient Guru

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    would be nice if in the options you could set your primary GPU that would make things much easier
     
  18. fantaskarsef

    fantaskarsef Ancient Guru

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    That's true, to me personally the tech would only be halfly as useful if you can't do this by a software switch under your OS environment (not even rebooting into BIOS would be a practical way to solve this imo).
     

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