Console downsizing, is the PS3 version of GTA4 only 630P?

Although Sam Houser, the founder of Rockstar Games, clearly stated in a special interview that the graphic effects of the PS3 version and the XBOX360 version are basically at the same level, seeing is believing. The actual experience of players is the most explanatory, and their reaction is that the PS3 version looks worse than the XBOX360 version.