more to add to my previous point, this is what crytek were able to achieve in the 3 years from farcry to crysis
http://s2.n4g.com/media/11/newssi/35000/39488_0_org.jpg
This is the advancement we have seen in the 4 years from crysis to crysis 2
http://gamingbolt.com/wp-content/gallery/crysis-2-vs-crysis-1-1080p-in-game-screenshot-comparison/crysis-2-versus-crysis-1-screen-1.jpg
just such a crying shame.