My rig with RX570/RX580 4GB upgrade to 930-950h per card, but rig with RX580 8GB have 850H... i tried -h 1800, but no effect. Who have troubles with RX580 8GB?
I have rx-580's and I get between 830-860H/s, it was an upgrade from 780-790H/s, but I cannot hit 900+ H/s with these RX-580 8GB cards (Hynix).