Quote Originally Posted by Jonny Manc View Post

My Theory:
I believe the bigger differences are caused by open programs that require processing in one form or another thus slowing down cores ability to pass tests at the same speed as others.

Can anyone verify / shoot me down on this??
Yep. Varying background tasks running on cores occupy cpu cycles temporarily so slows prime to different degrees on cores. I found old post of mine that had quote from prime site regarding priority and sharing of cpu cycles of prime and other tasks.
http://www.xtremesystems.org/Forums/...8&postcount=25