You should be aware that we need real AMD Linux driver with fixed DAG issue. This driver also should allow to undervolt!!!

Just did a test with my rig (H110 Pro BTC+, modded 7xRX580 8GB):

SMOS image simpleminer-RX-v1118-17.30-dagfix-computekernel.img.zip & simpleminer-RX-v1118_dagfix_computekernel.img.zip:
- every card stable 30.5MH/s
- total from wall 1500W!!!
- changing power stage does not help a lot
- NO UNDERVOLTING possible

Win10 + latest Blockchain drivers:
- every card stable 30.5MH/s
- total from wall - 980W!!!
- undervolted in Claymore 10.0 (-fanmin 40 -fanmax 90 -cclock 1250 -mclock 2200 -cvddc 900 -mvddc 900)

For now Windows is the winner