I mine with Vega 64 with 2130 hashes on 170W from the wall on Cryptonight.
what are the clocks and volts?
Wouldn't put much stock in these numbers... these are better than I get with Vega FE's and all my 56/64s.
The newest driver baby... I have my memory clocked at 1185
You should carefully examine your results on the pool. My experience with reference samsung-based vegas is that they have a lot compute errors after 1150mhz hbm clock producing some kind of fake hashrate.
There was another user mentioning that the errors come from leakage from the silicon in high temperature as he could take the cards a lot higher in clock with lower temps using a liquid card . Another conclusion is that lower voltage is beneficial because it lowers temperature