on my R9 280x rig im getting 350-380kh/s at each card
here is my config
I13
worksize 256
gpu engine 1000
mem 1500
powertune -20
shaders 2048
gpu threads 2
the trick is at the bat file
setx GPU_MAX_ALLOC_PERCENT 200
setx GPU_USE_SYNC_OBJECTS 1
any tip panda for my sweet setup appreciated
PhPbva92ucowxdSGiKw7NTGoscR9Wwb4pW