...On top of that, its so incredibly unreasonable for the community to expect that amd must outperform nvidia, they need to sell a ton of good value hardware first before they can even begin to make an effort.
Well they certainly tried that approach with Polaris and got nVidia blazing reaction with GP106. RX480 is a good performing, reasonably priced card but the irony was shifted market focus from medium priced < $300 cards to < $400 last quarter. nVidia sold more GTX1070s than GTX1060s.
I still think that they need to fight back hard.
But is Vega 10 really the top-end GPU? Vega 20 is rumoured to be a shrunken Vega 10 GPU with higher clock speeds and 16GB of VRAM. Maybe that's where the 16GB is going. 8GB for Vega 10 does kinda suck because it's the same as the RX 480 which is realistically not even half as fast as a 1080 (and Vega 10 is likely going to be faster than a 1080). But 16GB does seem an awful lot.
In retrospect, I feel both 8GB and 16GB could be possible. Maybe the flagship unlocked Vega 10 GPU will come with 16GB while a cutdown version will come with 8GB. 16GB is a huge amount for a GPU only capable of slightly beating a 1080—at least at the moment.
This.
They stated that the card shown running 4K DOOM is high end card but is it the top one?