new drivers (14-6 beta) tested on 7790-7950-280X ... old=new hrate in Mh 3.2=5.6 - 6.5=10.2 - 7.3 = 11.5 install new drivers version from AMD
problem with install in 5 or more card configure be careful
and remember to remove the old bin files, they need to be rebuilt with the new drivers in order to enjoy the new speed.
also remember more power is needed so, along with summer coming, you might need more effective cooling.