damn, i can not get more than 200-220 kh/s with vertminer 0.5.3 using my sapphire 7950 dual-x!
any configurations or tips would be much appreciated!
PS. what's the normal kh/s for 7950 with scrypt-n??
R9 270 can get 220 Khs, so 7950 should be at least 250Khs.