I think the version of RE:CV on PSN is a port of the Gamecube version, so it's probably the same that's on XBLA. The Dreamcast version looks a lot better than this HD port, even today.
the port of RE:CV is a really poor effort, Most game companies really do put fuck all effort into them. Some thick cunt on another forum threw his toys out of the pram at me because I didn't think the standard price was worth this poor effort. As for the game, played it on the DC and cube but have forgotten some of its flaws, the muddy textures on HDTV does not help it. Still would play this over RE6 chris campaign