Just wanted to say thanks to the cast-xmr team, great job on the miner!
I just started mining with Sapphire PULSE RX 570 - 4 GB, Modded bios, GPU 1350 Mem 1950 running under 100W, i get ~890h/s on Monero with cast-xmr miner.
The best i could do with sgminer and xmr-stak was around 800-820 h/s