I grabbed a Vega 64 for test. (all claymore)
Eth mining 34mh stock with last AMD driver,
37mh with blockchain beta driver, and 41mh with simple OC.
less than 500h/s ZEC mining with last claymore.
Very noisy. Fan not under control.
The main issue with VEGA is that I can't do anything about voltage.
This is grayed in Afterburner.
I was thinking to set voltage in claymore, but I don't know the stock one. It doesn't appear in AB, and even gpu-z doesn't show it.
I don't know if this is because of Beta drivers or not.
If you have ideas, I can try !
When you say that you can't do anything about voltage in Afterburner, do you mean the power limit slider is grayed out as well?
Hopefully we will have an updated Afterburner and GPU miners updated as well to support Vega sometime soon (maybe next month?).