As you may be aware, from a certain Nvidia Forceware drivers and on, for 8xxx cards and higher (IIRC), you have Physx option at your service that hands in-game physics calculations over to be executed by your GPU, instead of the ordinary method, by CPU.

I have an Intel Core i7 920 (4 physical, 8 logical cores) and a weakling 9500GT. I had enabled Physx some time ago, however after especially playing Sacred 2 for some days now, I'm wondering if I had done the right thing.

Obviously, my CPU is monstrous compared to my GPU barely making it, and I doubt if having my GPU do the math for in-game physical aspects is performance breaking.

Did I get the whole logic wrong or should I think over what I had done by enabling that ?

Thanks in advance.