Re: with two GTX 280 and a phyics card
Using a 9800GTX as a PhysX card would depend greatly on the resolution your running. If you were doing 2560x1600 with 16xAA/16xAF and playing Mirrors edge. Having a 9800GTX + would benefit your performance a great deal. Physics processing does use GPU resources. So you need to consider your bottlenecks already.
|CPU: Intel I7 Lynnfield @ 3.0 Ghz|Mobo:Asus P7P55 WS Supercomputer |Memory:8 Gigs DDR3 1333|Video:Geforce GTX 295 Quad SLI|Monitor:Samsung Syncmaster 1680x1080 3D Vision\/Olevia 27 Inch Widescreen HDTV 1920x1080
|CPU: AMD Phenom 9600 Black Edition @ 2.5 Ghz|Mobo:Asus M3n HT Deluxe Nforce 780A|Memory: 4 gigs DDR2 800| Video: Geforce GTX 280x2 SLI
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