I doubt that 5700 will stay stable at 90w giving 54mhs ok lets say it is stable at 90w giving you.
Enough proof?
https://imgur.com/a/Gyv7gkoCould you please post all your clock & voltage settings? TIA
he will not post that. also he has bios modified. Dude i said
ok lets say it is stable. besides i dont believe wattage that miner and gpu-z shows because one of my rx480 shows 62watts and hashing at 31mhs which impossible 62w.