What msi afterburner settings are good for XMR mining on RX480, RX470, and 390?
RX470 - core 1240, mem 2155 (700h/s)
RX480 - core 1250, mem 2200 (725h/s)
I have only 380x - core 1000, mem 1500 (550h/s)
I think you should modify memory timing in the card's bios. If I use for my RX470 4GB ref. card the factory settings and only modify memory timings (copy the 1500 timing value to 1625,1750,2000) I get ~650h/s. Then I set memory clock from 1750Mhz to 1850Mhz and I get ~740h/s. So timing is important. I didn't try to set memory clock higher yet.