Just an update on the problem i was having in regards to my low cpu score.
It's appears to be connected in how i run the benchmark, eg, if i click "launch benchmark" i receive an overall score of around 4210 and a cpu score of around 12750-12850, but, if i force the benchmark to "run in 64bit" my overall score lowers to around 4160 and my cpu scores goes up to 13050-13100.
In-line i believe with other scores for the same clock speed.
It's strange really, as when i first installed the benchmark after a fresh install of windows 8, along with all the latest drivers for gpu and chipset etc, i'd not get this problem, i'd just launch the benchmark and get scores in-line with others, but after a few runs, it's as if something changes even though i've not installed/ran anything different.
One thing i have noticed aswell is that when this happens, where as normally MSI afterburner's overlay isn't visible while running the benchmark, it suddenly is
could be related i don't know.
Thought i'd share just incase others encounter the same issue.
David