The big difference is that on the Rampage you can only CPU-Z validate because is not stable and on Gigabyte you can actually Prime95/IBT it...
But why sub utilize 8gigas of ram? You can use 4 gigas on one machine and 4 gigas on the other :-)
EDIT: just to add that this board has failed to run smoothly with large amount of ram (16Gb) I don't think it was meant to be used as a server but as a OC/Enthusiast board. It will be interesting to see if it can get different results with 8Gb.
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