Agreed, I am curious on the hashrate. I've heard people say 1200ish but I wonder if those are unoptimized hashrates without proper settings.
I have hit 1330-1340 mh/s using msi afterburner on my sapphire 7990.
100mhz ram, 0% voltage, using guiminer.
If linux or cgminer its probably possible to hit quite a bit higher. Right now I run 1240-1285 mh/s range 24/7 for weeks. Temps 79C or below. 3 GPUs.
*note I am only giving results for my 7990 card.
It can probably hit 1376-1400+mh/s...yes I believe its possible.