im running all 6 cores unlocked on my cpu, and turbo enabled.
(note i just got into a multi player game for the first time and i was hitting around 75 fps and ran smoothly**** In Campaign im hitting 110 to 120.)
i have sfsmod and nossao_mod installed by Kegetys, (
http://www.kegetys.net) and no stuttering
in game vid.settings 1920x 1080
aa set at 4
model high
visual effects high
grass off
anti eps. off
everything else is medium