2017 was a very interesting year for AMD, Ryzen was excellent, but Vega wasn't that great (unless you're a miner). That said, Vega 8 seems to show that Vega can be very power efficient when it's on a lower powered setting. (Down clocking and undervolting Vega 56 shows similar results).

I am looking forward to 2018, Ryzen+ on 12nm does have promise, but I'm not going to hold my breath for AMD in the Graphics high end (Navi). AMD in midrange is another story, Polaris (4xx and 5xx) were excellent, would love to see some more development in there!