To be honest I do not understand how someone can say that it WILL max out Crysis when its obvious that it won't. Maxed out means MAXED OUT, means including xAA and xAF so the answer is no, it will not max out Crysis. Now, if you are talking about max settings with no AA at all then that is a different story, as the xAA in Crysis is what normally bogs down your frame-rate. If you will not be using AA at all then the answer is yes, if AA is applied you can say bye bye to your playable frame-rate. 30FPS in Crysis is unplayable unless you can care less about LAG in "general". For smooth gameplay you will need at least 40FPS and even then it will drop to the low 20's when you start blowing things up.
In order for me to get around 40-55FPS I need to have the GPU @ 950/1250 and the CPU at around 3.6Ghz (no AA).
Even dual 5850's struggle to achieve a constant 45FPS with 4xAA..