Update: I was unfortunately not aware of Shamus Young's severe criticism of Fallout 3 available here to link in the original piece and I regret that. It dovetails rather nicely with what I've written and it's much better executed than my piece. I strongly recommend anyone...
Players will take on the role of Will; a pilot dropped into incredible circumstances while on a routine air cargo flight crashes in the Bermuda triangle leading him to be trapped in the Void. This unlikely hero soon finds himself swept into a desperate struggle for survival at the head of a group called The Survivors. Trapped in the Void, these resistance fighters are battling to hold off a mysterious alien race that plans to threaten Earth.
To give users a taste of the enhancements that PhysX provides to Dark Void, Capcom and Airtight Games have developed a standalone benchmark that shows off some of the PhysX effects.
PC's without the latest GeForce GPUs can run the benchmark, although the PhysX processing in this case will be done on the CPU. Given the heavy processing loads that are required for accurate physics simulation, the benchmark limits the PhysX features to the "Low" setting found in the actual game.