That's no excuse. There's a huge difference in amount of models, polygons, draw distance, and textures between the two...too big of a difference. These screens show around the same amount of models on screen, you're telling me with the extra power of the Xbox, it cannot handle a game looking as decent as RSIII online?
Don't be blinded, this game looks piss poor and could be a lot better. It's actually embarassing, I'm surprised they're releasing screens.