Originally posted by: nRollo
Originally posted by: cmdrdredd
That entirely avoided my question.
Where is the benefit to the gameplay? FPS means little when you're already at playable and enjoyable levels. Physix doesn't make me say "wow I gotta have that for the new game" because there is nothing it does to the core gameplay that makes me have to have it. You see where I'm going? Developers are not dumb and won't make a game unplayable on ATI cards just because Nvidia is the only one who uses physix. Right now it's just about getting more FPS when you enable it, the gameplay is not affected by physix at all. Meaning the game is the same on both cards, just losing a few FPS if you choose to enable physix.
I don't know if I understand the question.
UT3 performance with and without PhysX in the PhysX levels
So on the Physx levels with their added effects a GTX280 is getting 41.9 fps at 16X12 0X0X with PhysX enabled, and 14.5 fps using the CPU as an ATi card would.
14.5 fps to 41.9 fps isn't a few frames, it's the difference between playable and and not even close.
The question will be in upcoming PhysX titles how much difference it will make, and whether their will basically be two versions of the game like UT3.