With a 270x I'm getting very poor performance. gpu:0:Hawaii [Radeon R9 200 series]. In the work queue the ETA on the gpu is 10 days while my cpu is about 2 and a half hours. Any suggestions? Is my card just not powerful enough for this type of work?
turn off one core on your cpu. Your gpu will need it ...Advanced settings. under SLOT click on the cpu and change -1 to a number less than your cpu cores...