AMD VEGA = poor hashrate and big power consumption.
It looks like it will be, with the already released Frontier version consuming almost 400W from the wall and staying bellow a 1080 nonTi, AMD just do not stop releasing crappy cards to the masses.
(1) poor ETH mining does not make the card "crappy" - that's like saying that a Formula 1 race car is "crappy" because it can't haul half a ton of stuff like a pickup.
(2) The Frontier edition isn't intended for "the masses", it's a WORKSTATION card.
(3) It's new enough that software hasn't been optimised for it yet.