im getting 1.1 GH/s (245 WU/m) on my chaosrig (2x 5870, 2x7850, 1x5970) which did 2.2 MH/s on scrypt before.
am i doing this right? i just cant find any info on these cards to compare for keccak. do i need to push the memclock to gain more hashingpower? (of course, i could start trying some values but its always HARD work to get things running smooth with 3 different types of cards. so plz help  thx)