System specs are the same as the PS3 as far as I know.
And I don´t think that it looks better as the crytek engine. I think a jungle is harder to render as what they have done. And polygone # wise I have seen such stuff already on PS3 like for example LAIR. While it´s getting impossible to be able to say anything about the polygcount because it´s getting pretty high. Just the textures issues are still there on the ps3.
I can see more and more that graphics has not realy something to do with fun. Yeah, of course this counts only from 16bit up. I mean I think there are games on SNES which are much better as most games produced nowadays.