there are some pretty intense sequences later where there are mortars and what have you going off everywhere, and none of my cores have even gone near 90%! i remember cevat saying that it wouldn't provide necessarily faster FPS, but reduce overall stuttering and make for a more smooth gameplay. i didn't start this thread with the intention of bashing cevat or crysis, as i have a feeling that we will see a patch on release day fixing some problems of the shipped build. i have confidence that crytek will fix this issue (not using my 4 cores!), the question is how long will it take. if they fail to deliver, don't expect anyone to listen to a thing crytek says in the future.
*edit* i spelled the first word incorrectly and that **** bugs me