my rx 580 8GB didn't get pass 30MH/s not sure why, only can get around 29.8Mhz
command i use -amd -rxboost 30 -clKernel 1 -prate 0.12 -cvddc 825 -mvddc 850
same result with memory overclock to 2250Mhz
using latest pm miner with 20.11.1 driver
I also can't exceed 30mh/s with phoneixminer, with claymore rx 580 nitro+ 8gb 33.9 mh/s , rx 580 powercolor 8gb 32mh/s
the same claymore settings put on phoneixminer ... 27-28 mh/s
tried different drivers and different versions of phoneixminer