Yeah physx is running on the gpu (gtx 690).
What is a good fps benchmark tool? I can benchmark something and throw it up here. The game is generally very nice, but physx seems insanely demanding period.
For those of you getting worried if your systems will work, they will, you just have to turn a setting or two down (physx probably).
What's with the bickering about it. The game may be buggy and is certainly demanding. My buddy plays with a single 680, I'll see if I can have him benchmark it too just cuz I'm curious if the same scene drops are 1/2 or does SLI drop as far as a single card (or further). As I mentioned earlier I mostly notice 60-200 fps. It's hard to see the fps drops on the counter because you're usually next to a boss with fireworks so intense you can't even see anything else then the explosions etc.