https://www.nicehash.com/index.jsp?p=software#sgminer
sgminer_v5.1_2015-03-09-win32.zip

use win7x64bit 15.3 catalyst beta driver

settings

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer -k nist5 -o stratum+tcp://16bit.suprnova.cc:2004 -u x -p x -I 19 -w 256 --thread-concurrency 8192 --lookup-gap 2 -g 2 --gpu-engine 1160 --gpu-memclock 300 --auto-fan --gpu-fan 65-85 --temp-cutoff 80 --temp-overheat 76 --temp-target 73