Lame. VEGA64 can easily give over 49Mhash under 200W.
Just set something like 1085MHz VRAM, 920MHz GPU core and run AMD Memory Tweak (EIO.dll is missing release):
WinAMDTweak.exe --CL 19 --RAS 28 --RCDRD 12 --RCDWR 5 --RC 44 --RP 12 --RRDS 3 --RRDL 3 --RTP 4 --FAW 18 --CWL 6 --WTRS 4 --WTRL 9...