Originally Posted by Naito
From my own findings, my memory bandwidth went from ~8GB/s (6GB DDR2 @800MHz) to just under 25GB/s with my 3770 (16GB DDR3 @ 1866MHz). Stats found using WinSAT mem. For timings see my system specs to the left.
Ah, a note about the memory bandwidth and the slow FSB:
I used a Crucial DDR3 1333 7-7-7-24 dual channel kit for a while when I had my Phenom II as my main rig. By overclocking the NB and HTT speeds, I got a boost in memory performance. Then, when I switched to the socket 1366 i7 920, using the same RAM at the same speed, I saw another boost in memory performance. It seems AMD's HTT link speed, faster than Intel's old FSB speed can't keep up with even slower DDR3 models... so that slow FSB must really be holding memory performance back a lot.
You can try to curb this a bit by lowering your CPU core speed multiplier and raising the FSB more to achieve the same core speed, yet bumping up your FSB link speed. Watch your memory speed as well, as this will also go up with the FSB.