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Windows 7: Ati + Nvidia For Physics

26 Aug 2009   #1
SuperEmotastix

Windows 7 Ultimate 64-bit
 
 
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


My System SpecsSystem Spec
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26 Aug 2009   #2
mickey megabyte

ultimate 64 sp1
 
 

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.
My System SpecsSystem Spec
26 Aug 2009   #3
SuperEmotastix

Windows 7 Ultimate 64-bit
 
 

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.
My System SpecsSystem Spec
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26 Aug 2009   #4
KazeNoKoe23

Windows 7 Professional x64 SP1
 
 

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.
My System SpecsSystem Spec
26 Aug 2009   #5
Steve123MC

Windows 7
 
 



Apparently you can.
Hope this helps ATI + Nvidia for physx? YES! - [H]ard|Forum
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26 Aug 2009   #6
mickey megabyte

ultimate 64 sp1
 
 

i stand corrected, well done steve. not the sort of thing i would try myself though...*shudders*
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26 Aug 2009   #7
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by mickey megabyte View Post
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
My System SpecsSystem Spec
26 Aug 2009   #8
KazeNoKoe23

Windows 7 Professional x64 SP1
 
 

Quote   Quote: Originally Posted by Steve123MC View Post


Apparently you can.
Hope this helps ATI + Nvidia for physx? YES! - [H]ard|Forum
I stand corrected. This is interesting.
My System SpecsSystem Spec
26 Aug 2009   #9
SuperEmotastix

Windows 7 Ultimate 64-bit
 
 

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?
My System SpecsSystem Spec
26 Aug 2009   #10
mickey megabyte

ultimate 64 sp1
 
 

don't ask me *shudders uncontrollably*

good luck!
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 Ati + Nvidia For Physics




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