The good news is the difference during this generation will be less impacting than the PS3 and 360 divergence since most of the issues involving the PS3 boiled down to being a completely different abomination to the developers that might not have received the correct porting guidelines and as a result, a lot of stuff made for one console translated horribly to the other. If SDK development converged with PC, then it will be the go to module for developing games and anything different will be a port. Even though I honestly can't think of a reason why DIRT looks the way it does, I can safely say the hardware isn't to blame in the least. The difference wouldn't be present even if the game was a last gen title relying on horsepower to look better unless it was a really crappy port of a Sony game.
