R9 290x Sapphire cgminer config: (893khs)
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
color 02
cgminer.exe --scrypt -o stratum+tcp://ltc.cryptoworld.eu:3333 -u barthyczg.5 -p x --intensity 20 --thread-concurrency 32764 -g 1 --lookup-gap 2 --worksize 256 --gpu-engine 940 --gpu-memclock 1500 --gpu-powertune 20