-I 13 -w 256 -g 2 --lookup-gap 2 --gpu-powertune -20 --gpu-engine 1022

--gpu-memclock 1500,1500,1500 --thread-concurrency 8192 --temp-target 70 --temp-cutoff 90 --gpu-fan 25-80

getting 350+ on gigabyte r9 280

hope it helps


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