Recently 2K Games released one of the most anticipated games of 2010, Mafia 2, which is a title that looks fantastic in surround mode and for those who have a capable system it also supports PhysX and 3D.
Testing was performed at 5760x1080 with anti-aliasing ON and 16x anisotropic filtering. High in game settings were enabled and PhysX was set to off/high.
As Mafia 2 allows us to enable/disable the PhysX effects we have tested the GTX 590 with both settings to show how it compares to the Radeon 6990. With PhysX off, giving the two cards an identical workload, the GTX 590 performs higher than the Radeon. When we enable PhysX, enhancing the image quality to a level which isn't possible on the 6990 or GTX framerates drop as expected however the gameplay is still completely smooth.
When we then add a second card and test again we see that the AMD system scales but the GTX 590 has an even more impressive increase which means that even when we enable PhysX to add additional workload the Quad SLI system is still faster than the lower IQ 6990 in CrossFire.
Here is an example of how the game looks at the tested settings.