well first, maxxed is Very High, not High... maybe you could do it with High... secondly, AA is really taxing, moreso than any other feature, especially on nv cards (ati just seem to handle it better, not sure why tho)... also, even if you get full scaling (which you wont, especially with Crysis) and leave the AA at 2x, you'll only get 50fps... increase that AA to 16 sample and you'll be alot lower than that (if you use the same setup... with the i7, you should have a much better chance, but i still doubt you can hit even 45fps with 16xAA)