Erhmmm....HUH?!
Ok so I just opened up my nTune panel, and it appears my mem is only clocked @ 621MHz, as i.e. BFG says they have it at 1600MHz!! cheesegrater told me I have a rebranded, could that be it? 
Mees - Suffering from a 'slow' card...

Mees - Suffering from a 'slow' card...
:-/ :-/