Vega is ... hot. In stock it takes about 400-450W in dual, 300-350W in ETH-only mode at about 33MH/s. And it's throttling like hell. It's very good in dual mining mode, but it's too hot.
Undervolt it - DUH. I forced mine to never go above 1.025V, and she mined Sia under Linux at 1600Mhz stable! :3
yeah but what was the wattage, even a 120 mv uundervolt on an RX 580 8GB only saves 30-40 watts
250 watts for 31 eth and 1600 SIA is garbage for a FE card that costs $900
I can get 37 mhs eth and 1300 SIA out of a gtx 1080 ti for 230 watts , and its a cheaper card