This is a "can my comp run this" AND Crysis question, hope it's okay here!

I bought the game "Crysis" for PC windows for my brother for Xmas...

He recently bought a 'gaming' laptop but I found out the processor is only 1.5Ghz!!!! On the game it says it needs a minimum of 2.2Ghz (with vista) for the processor speed. He's got 256 video, 2GB ram, etc.

Will it run ok on his computer? If it won't, I need to return it like NOW since it's the only thing I have for a present right now! ARGH!

Please help, how exact are the requirement specs on these games???? Thanks for any replies/help!