7970 - same hash as 2% version = 3,000 Mh per card /+-0.5%/ WU=0.040-0.055
-k x11mod -I 15 -w 256 --gpu-threads 2 --thread-concurrency 8192 --gpu-engine 1050,1050 --gpu-memclock 1500,1500 --gpu-powertune 20
but I can't set more than 1050 gpu engine. If more, there is some issue with hw errors or so.../unstable/
I will try 14.4 beta for compare
interesting is that on same rig with 2x7970:
2% ver ~ 6,090 Mh -
WU=0.085 - pool worker diff = 1000-1200
This ver ~ 6.000 Mh -
WU=0.095 - pool worker diff = 1500