In Toms's hardware they tested and its makes 30.9 mh/s in mining ether using claymore but i think it is not overclocked yet. You can check the article from this link http://www.tomshardware.com/reviews/amd-radeon-rx-vega-64,5173-16.html
In Toms's hardware they tested and its makes 30.9 mh/s in mining ether using claymore but i think it is not overclocked yet. You can check the article from this link http://www.tomshardware.com/reviews/amd-radeon-rx-vega-64,5173-16.html