Lets face it, right now the "newer tech" is an overblown gimmick that is years away from being mainstream. You'll get a few games supporting it obviously but for the here and now it's nothing special in any way.
Vii around the same power as a vega 64 so could likely be tweaked down a bit. Even then the consumption is the absolute max it can pull, i'd doubt it would normally get near that. My vega strix at 1440p according to wattman it's usually in the 150w range or thereabouts.
I can get about 180w from my own undervolted vega but it’s still a hot part compared to the 20 series.
Completely agree on the newer tech but if it’s a choice of having it or not having it for the same money then it’s back to no brainier time.
£100 less mind and I’m sold myself!