That doesn't stop games from looking just as good on the PC as they do on the consoles. See any multiplatform game, such as Grid. There really is no reason why GT5 or Forza 3 can't be run by a PC. It'd just have to be a pretty good one to run at max settings. It's a shame that neither Turn 10 nor Polyphony seems determined to make their game for the PC as well. It would only help them I'm sure.