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New Physx Drivers Seperate Card For Physx

Discussion in 'NVIDIA' started by KieranD, Aug 7, 2008.

  1. KieranD

    KieranD

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    I heard with the new Physx software you can enable a seperate gpu to do only Physx.

    You can have a 8600gt to do physx alongside another card.

    Since it is only doing Physx and not SLI i think you can do this on crossfire boards.
    alexp999 says thanks.
  2. alexp999

    alexp999 Staff

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    What a great question, sorry not to be posting with an answer, but this I got to hear the answer too. I may pick myself up a £30 8 series if this turns out to be true and worth it. :D
  3. KieranD

    KieranD

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    i think i might get myself a cheapo 8000 series prolly 8600 series

    ebay FTW

    i think now it would be cool to tri SLi and dedicate a card to physx
  4. alexp999

    alexp999 Staff

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    Found the answer, yes you can!!! :D:D:D:D:D:D

    http://www.firingsquad.com/hardware/nvidia_geforce_physx_performance/page2.asp

    It says :

    In SLI mode, each GPU in your system shares the physics processing and graphics workload evenly. This is the default mode when SLI is enabled in the ForceWare control panel

    In multi-GPU mode, one GPU handles all graphics duties, while the second card is solely responsible for tackling all physics commands. Under this mode end users can mix and match different cards. For instance, someone who purchased a GeForce 8800 GT last year can run this card for physics, and then pick up a brand new GeForce GTX 280 to run as the primary graphics card for gaming. An SLI motherboard isn’t required for this mode either, both SLI and non-SLI motherboards are supported.:D

    One limitation of this mode under Vista is that a second monitor must be attached to run PhysX on the secondary GPU, and you must extend the Vista desktop onto this secondary monitor. According to NVIDIA this limitation is related to the Windows Vista display driver model (WDDM). However, the same limitation does not exist in Windows XP. (so glad my monitor has two inputs :D )
  5. mullered07

    mullered07 New Member

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    what does that mean ?
  6. alexp999

    alexp999 Staff

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    Sorry missed a bit on the copy and paste:

    mullered07 says thanks.
  7. timta2

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    I'm getting worse performance in the Nurien demo with a second card doing PhysX. With my 8600GT doing Physx and my 8800GTS 512 for the main display I get 35fps. With the 8800GTS 512 doing both I get 40fps. I guess I will check out some games that use PhysX but I'm kind of shocked by that. If it is this way across the board then there isn't any advantage to using a lesser second card for PhysX.
  8. raptori

    raptori

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    noooooooooooo this is not good news
  9. raptori

    raptori

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    oops
  10. candle_86 New Member

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    well get a secondhand 8800GT or 8800GTS 320 or even an 8800GS to run your physx on
  11. timta2

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    It seems to me that would be a silly waste of money. Anybody else try similar testing?
  12. boogah New Member

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    from my testing.. single card yields better results overall unless the 2 cards are SLI together ^___~
  13. kid41212003

    kid41212003

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    ATI & NVIDIA Drivers may conflict, updated drivers needed for ATI and NVIDIA cards setup to work together, and I heard this questions over and over again 100+ time in 50 threads... Someone should make a thread with everything on it.
  14. PuMA

    PuMA New Member

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    GTX260 as physx processor gave me 2000 points better score in fluidmark physx test than 8800gts 320mb.

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