well, only 1 frame per second slower in my benchmark, i hav same grafix overclock settings, am i doing something wrong like enabling a check button tht slows it down a bit? cuz other than tht afterburner seems like a better tool than ati overdrive.
I noticed a big drop in FPS when I used afterburner for setting a new auto-fan profile. Instead of default auto settings (40% most the time) I had set a new line of temps and speeds to reach and this took 5 or so FPS off all my games.
I now only use MSI for a "static" overclock where the fans are constantly at 72%.
You might be able to get a little more out of MSI if you don't have hardware monitor showing, simpler skin and that kinda' thing.. probably nothing noticeable though.
Honestly I haven't seen any difference running Afterburner to not running Afterburner in any games or overall performance. I OC only a bit (about 9%), so the performance is better. I don't know, maybe I just haven't looked close enough?
I've had between 20-30% overclock on my graphics cards for ages, but noticed a jerking or stuttering effect when using MSI afterburner auto-fan profiles. It works without a hitch just overclocking and setting a fan speed, but it was very noticeable having the auto-profiles turned on.