For pc v console engines please go and read the digital foundry article regarding Metro 2033 and the 4aEngine.
A developer can push a console to the limit. They can extract near 100% of gpu usage. That rarely happens on pc.
It's a great read and judging by the in game footage of the game it's certainly looking a damn site more interesting and graphically impressive than Crysis.
Also why is crysis the benchmark? It's engine Is badly optimised nd outside of cut scenes the game looks nothing special IMHO. I'm running on very high at 1920x1200 settings and totally underwhelmed by this game that everyone keeps touting as a pinicle.
I was more impresed by the original FarCry than Crysis in regards to graphics and more over gameplay.
To me it seems Crysis & Crysis warhead are so Badly optimised that the only reason they are used for benchmarks is that you need a **** load of power to get it looking anyway decent at all. Taking crysis in it's current state and running it on hardware similar to that of ps3 or 360 gpu's and you would have a choppy low peformance mess. That is not proof of great benchmark title, it's just emphasis's how poor the engine truly is.
Metro 2033 is looking spectacular on 360 and runs with all the bells & whistles of a modern game engine (post processing etc) and even manages to throw in it's own 4x AA technique and if ran without frame lock would jeep between 40-50 fps.
http://m.youtube.com/?dc=organic&source=mog&hl=en#/watch?v=ib09Cw9-k04&client=mv-google
http://m.youtube.com/?dc=organic&source=mog&hl=en#/watch?v=bT2BbruE9Ws&client=mv-google