C'mon guys ScryptN is your salvation! My 7950's were cracking to 550kh with it
WTF are you running them at 2 GHz?
Seriously that is at least 50% more than I have ever seen on a 7950
https://bitcointalk.org/index.php?topic=469887.msg5470068#msg5470068
That's what I started out at. I can do a screenshot of the 500+ if you'd like. Nicely advanced 7950 setup. You should've seen the 280X hashrates lol.
Are you sure your cards provide valid work? I have yet to see even a 290X at 500+...