r9 290 tri-x
1000MHz Core
1500Mhz Memory

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
sgminer -k marucoin -I 14 -w 512 -g 1 --lookup-gap 2 --thread-concurrency 32765
pause

On Intensity 14:1.210 MH/s

On Intensity 20:1.600 MH/s