Why is everyone thinking MW2 performed the same on PS3 while Black Ops didn't?MW2 had more 60fps points on both consoles,which resulted in a bit closer parity,but interesting thing is that when action gets hectic PS3 version is usually 10fps slower,same like in Black Ops.
In the end its hard for them to be completely equal.One console might get easier with alphas heavy situation(like Grandmaster said) for example,so in those situation they can't get it up completely on the level.Its hard to expect exact parity.