Ati + Nvidia For Physics

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  1. Posts : 71
    Windows 7 Ultimate 64-bit
       #1

    Ati + Nvidia For Physics


    I recently upgraded my graphics card to a Sapphire 4890 OC, just wondering is it possible to use my old EVGA 8800GT card just for physics in games like mirror's edge. So have the ati card for rendering graphics and the nvidia card doing gpu accelerated physics? I'm using Win 7 RTM x64
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  2. Posts : 8,398
    ultimate 64 sp1
       #2

    i really don't think you can. it seems too hairy to even contemplate. your cpu should be able to handle the physx.

    but please correct me, somebody, if i'm wrong.
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  3. Posts : 71
    Windows 7 Ultimate 64-bit
    Thread Starter
       #3

    I think I read somewhere that with nvidia's new drivers as soon as it detects a non-nvidia gpu it disables physics, but supposedly it works with the old drivers. I've seen a few videos on youtube of it working on windows 7, so i'm not really sure if I should give it a try. Don't really want to ditch my 8800GT just yet.
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  4. Posts : 554
    Windows 7 Professional x64 SP1
       #4

    I don't think an 8800GT + PhysX is going to provide ANY sort of visual/performance advantage that you would be missing with an OC'd 4890.

    That said, I still don't believe it's possible to use ATI and nVidia cards simultaneously like that.
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  5. Posts : 167
    Windows 7
       #5



    Apparently you can.
    Hope this helps ATI + Nvidia for physx? YES! - [H]ard|Forum
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  6. Posts : 8,398
    ultimate 64 sp1
       #6

    i stand corrected, well done steve. not the sort of thing i would try myself though...*shudders*
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  7. Posts : 6,879
    Win 7 Ultimate x64
       #7

    mickey megabyte said:
    but please correct me, somebody, if i'm wrong.
    OK you're wrong.

    Yes it can be done (only in XP and 7, won't work in Vista), and as SuperEmotastix said Nvidia has made a change in the latest drivers that if a card other than Nvidia is detected it will disable Physx,

    PhysX won't work with ati anymore - Rage3D Discussion Area
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  8. Posts : 554
    Windows 7 Professional x64 SP1
       #8

    Steve123MC said:


    Apparently you can.
    Hope this helps ATI + Nvidia for physx? YES! - [H]ard|Forum
    I stand corrected. This is interesting.
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  9. Posts : 71
    Windows 7 Ultimate 64-bit
    Thread Starter
       #9

    I think I might give this a try like right now, lol. If I were which driver set should I use, could I use a older driver set then just update the physics software? My 4890 Is connected using the dvi cable, so I guess i'll just use the vga cable to connect my 8800GT?
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  10. Posts : 8,398
    ultimate 64 sp1
       #10

    don't ask me *shudders uncontrollably*

    good luck!
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