SLI PhysX Performance

Mirror’s Edge – Direct3D

Mirror's Edge Performance 1920x1200
Card	Min FPS	Max FPS
GeForce GTX 260-216	38	57
GeForce GTX 260-216 SLI	58	79
GeForce GTX 260-216+GeForce 9600 GT	58	77
GeForce GTX 260-216+GeForce 9800 GTX+	59	75
GeForce 9800 GTX+	32	45
GeForce 9800 GTX+ SLI	45	67
GeForce 9800 GTX+ + GeForce 9600 GT	47	62
GeForce 8800/9800 GT	26	35
GeForce 8800/9800 GT+GeForce 9600 GT	38	51

Notes

First off, as we’ve seen in previous PhysX performance articles, the GeForce 9600 GT delivers the best PhysX performance for the dollar among GPUs. PhysX performance was basically on par with the vastly more powerful 9800 GTX+ when both were paired with the GeForce GTX 260 handling graphics.

The two SLI setups we tested, where one card is dedicated 100% to handling graphics, while the second card handles a mixture of PhysX and graphics, ran slightly faster than running the GeForce 9600 GT dedicated solely to PhysX. At 1920x1200 the GeForce GTX 260 SLI configuration outperformed the GTX 260+9600 GT combo by 2%, while the 9800 GTX+ SLI testbed was 5% faster.