thanks for the info
but ,being that a lot of gamers use seperate phyx cards ,you would think that futuremark would use it
I would disagree - it is not "a lot".
Also as long as it is a single vendor technology, it makes it incompatible with the goal of benchmarking various graphics cards. Everything that PhysX does on the GPU can be done with DX11 and DirectCompute, in a way that works on all DX11 cards, not just NVIDIA.