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Would it be possible...

jtvd78

Limp Gawd
Joined
Jul 27, 2009
Messages
303
Would it be possible to use a 295 as a dedicated physx processor? This is totally unrealistic, but i just wanted to know if it was possible.
 
Dedicated completely ? currently GPU PhysX can't use more than one GPU for physics calculations.
 
you can use the 295, but it won't perform any better than a 275 - only one gpu will be active. might be slightly slower from the pci-e bridging chip.
 
If you're really using PhysX, then get the biggest single-GPU card you can (GTX285 at the moment). If you run a dedicated PhysX GPU, buy big...

In Cryostasis at 1920x1200, going from tri-SLI with 285's to SLI + dedicated PhysX bumps you up from 58fps to 75fps (one guy trying it both ways on the same system). Similarly, with a 295 for graphics, going from a 9800GTX+ to a 280 for dedicated PhysX gives you about 10fps (two different guys with similar setups).
 
You can but its a huge waste of money. Practically speaking it doesn't make a difference right now. Maybe in the future it will but Mirror's Edge and Batman Arkham Asylum won't see much benefit from using an uber card for physics computations.

I use an old 8800GT for Physx along with my GTX 285 for video, and it works perfectly. The only thing I hate is how much noise the damn fan on the 8800GT makes, but that can be fixed with an aftermarket cooler.
 
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