Woah 
Between v11.1 and v12.0 i'm getting a huge hash drop. With 11.1 i'm getting ~205H on my R9 290. When I just fired up the v12.0 i'm only getting ~69-~75H. Am I missing something? I just checked 11.1 again and it's fine so it is definitely something in 12.0 :S..hmm.
Between v11.1 and v12.0 i'm getting a huge hash drop. With 11.1 i'm getting ~205H on my R9 290. When I just fired up the v12.0 i'm only getting ~69-~75H. Am I missing something? I just checked 11.1 again and it's fine so it is definitely something in 12.0 :S..hmm.I think lowering the intensity (-i) will cure your problem. Aggressive settings from v11.x do not work with every card type under v12.