Im managing to get my Vega 56 to 55 mh/s
For the ones who would like to copy my settings and try for themselves, here you go:
Tweak:
amdmemtweak --CL 20 --RC 36 --RP 14 --WR 14 --CWL 8 --FAW 12 --RAS 22 --REF 65000 --RFC 249 --RTP 5 --RRDL 6 --RRDS 3 --WTRL 9 --WTRS 4 --RCDRD 14 --RCDWR 12
Core clock: 1100
Core voltage: 840
Memory clock: 1025
Getting 55 mh/s at 125 watts