Hi!

I'm only getting 1.24Mh/s on the Sapphire r9-280x, I guess it should be a little more, with my R9-290 I get ~2.5Mh/s.

Thats my current config:

--shaders 2048 -I 23 -g 2 --thread-concurrency 16374 --lookup-gap 2 -w 256  --auto-fan  --gpu-fan 80-100 --gpu-powertune 2   --gpu-engine 1100 --gpu-memclock 1250

any suggestions how to tweak this?