Dude, are you joking?
That score is freaking awesome.
Totally takes my rig to the woodshed ...
What drivers are you running?
So, you got me wondering if something was wrong with my rig. So I updated to the 10.3's, and wow ... that must be what you're running. Now I'm seeing what I was expecting, which was to slightly beat your gpu score w/my rig at 925/1225 (mainly because my i7 and higher memory overclock should be enough to overcome your core clock advantage).
Looking at my 10.3 results vs. my 10.2 results, I'm surprised this whole forum isn't doing backflips over the 10.3 drivers. I mean, this is literally the biggest gain from a single driver update I've ever seen (and I've been doing this whole thing a LOOOONG time).
These 10.3 drivers give like a +8.7% increase in performance. It's actually pretty amazing. Mostly it seems like its the max frames that are really going up, but still ... cool stuff.