I'm not sure what I am doing differently, but I am running vertminer in BAMT 1.4 with three 7950s and now I am only getting 258 kh/s per card instead of about 315 like before. I don't know if it's BAMT or the latest version of vertminer (0.5.4pre2) that is causing the huge loss of hashrate.


EDIT: OK, it's totally the newest version of vertminer that was the problem. I did a git checkout to the last commit of 0.5.3, recompiled it and now my hashrate is back around 310 kh/s per card.