LOL, this is the first PhysX game that has actually overwhelmed my GTS 250 PhysX card. Usually, devs always exaggerate the PhysX requirements and what not (see Mafia 2), but after shooting up some wooden boxes, glass windows and stone columns, the GPU usage on my overclocked GTS 250 skyrocketed to 148%, which caused the game to temporarily freeze..
Switching PhysX over to my second GTX 580 fixed the problem though, as this game isn't as GPU intensive as it's predecessor due to better optimizations..
I guess it's time to upgrade my PhysX card to a GTX 460 :biggrin: