IT remains to be seen what kind of hashrate it will be capable of once the miner programmers get their hands on them and can optimize it. I expect that reaching 50 MH/s is going to be doable at some point, but with the crazy power draw I don't see it being super appealing even if it reaches that mark.
So the BIOS looks like its locked ... that being said, were playing with the power some to see what we can get out of this one now.
I also think it will get to 50+ MH/s with reduced power consumption once the miners and overclocking tools are optimized for Vega. Wolf0 also posted the Vega Bios is not encrypted, just signed and he has a workaround.
https://bitcointalksearch.org/topic/any-word-on-amd-vega-hash-rates-2002025
) and do a cradle to grave driver install, setup and configure for GPU PoW mining across multiple coins. Our tuning, testing will be all done in front of you.