Arma 3 works without PhysX physics engine.
Arma 3 works without PhysX physics engine.
It's unlikely to be a noticeable issue, though it might seem like a big change compared to other settings. The performance drop was mainly due to lower frame rates. Just focus on your needs—getting a GPU is enough.
I didn't see anything unusual in Mafia II, but I did notice my GTX 660 having trouble reaching over 22 frames per second while walking around. When I was driving, it worked smoothly at 60 fps, but I still didn’t notice any improvement. I’m not blind.