You talking about Brian? HE is a good with memory
I never got into the drive strength settings, played with skew a bit on my one rig, that helped quiet a bit.
Anywho from my experiments.
Low HT increases CPU score, for 3d obviously higher HT, although with 1 and 2 4850s anything over I think 1400 yielded no improvement. Higher HT improves GPU more than it hurts CPU.
For those 5000 series stuff.. I have no clue what would be necessary HT link wise but its pretty easy to figure out only take an hour or two