I believe the equivalent would be around the Geforce 7800. As for comparing PC to PS3, I think I read somewhere that PS3 games are optimized just for that system which is why it plays with decent quality. I mean if you were to put a 7800 in a pc today and run a title for PS3 that is also available for PC, then I would say the PC is going to be held back by the old video card and lag a lot.