Originally Posted by kuddles
So if a game like Batman or Mirror's Edge has hardware PhysX, it actually runs better if you turn SLI off? I guess that kinda makes sense - each individual card doing their own task instead of both of them performing the same two tasks at the same time.
I'm guessing this won't work on my GTX 295, though, since the 2nd GPU would have to be on a separate slot to be dedicated to PhysX.
Not neccasarily. It depends on game, Resolution, and rendering bottlenecks. Dedicated PhysX cards are mostly useful in my experience ((compared to standard SLI renderings)) at lower resolutions where PhysX processing is the primary bottleneck. But range can vary widely depending on settings and such.