OC & UV RX6800 ~ 150W in total! 

+------+----+-----------+------+-----+-----------+
|  GPU  Temp    Speed    Shares Power Efficiency |
+------+----+-----------+------+-----+-----------+
|  GPU0 59 C  63.25 MH/s    3/0   N/A        N/A |
+------+----+-----------+------+-----+-----------+