Here is the results for R9 390X. is it possible to get higher Hashrate with this graphic card ?
Claymre Dual Mining for ETH.
ETH only mode
30.467 - 30.804 Mh/s for ETH only mode.
Power: 341-348 Watt
28.139 - 29.635 Mh/s for ETH + 428.223 - 444.293 Mh/s for DCR
Power: 363-367 Watt
Yeah you could get 33Mh or more with a 390X.
Push the core clock up and the voltage down and find the sweet spot. you will need to enable voltage control in Afterburner's settings because I see it's still disabled for you.