Nvidia GTX280/260 and 9800GTX/+ 177.39 Beta Driver with PhysX-Support

[STaRGaZeR]

I'm surprised there is no performance hit in Unreal 3. You would think that since the GPU has to handle both graphics AND physics that the fps would take a hit. Apparently the opposite is true. You get a 2x to 3x fps boost by have a gpu handle both tasks. GPUs are truly powerful (and apparently underutilized by graphics workloads alone).

I assume you're talking about the first post in this thread. That test is not GPU bound, so all the power of the GPU is dedicated to physics. 2x and 3x FPS boost

Don't be fooled by marketing