Thanks for the answer I will do it so.
Do you you have so good mem tweak for vega 56 with 64 bios and Vega 64 too on ETH?
If the GPU has Samsung RAM then it will overclock really well which also goes for vega 56 with 64 bios flashed.
Flash the bios, increase mem and reduce core and subsequent voltages in overdriveNtool, use AMD Mem Tweaker to apply weak memory timings after that and run the miner. That's all I have to reach the highest possible hashrate in ETH and XMR.