That initial power rating did seem a bit too good to be true. And it would seem unnecessary to invest in a large cooler for a 220-250W card when a more compact (and cheaper) two-slot dual fan design would have been adequate, as the Power Color Dragon 5700 XT testifies to.
It's looking more and more likely that AMD's top tier card from AIB partners will surpass a 3080, at least in some titles.
It would currently half their possible memory capacity(Without huge expensive PCBs), and cost more ofc, when one of Navi2's key competitive points seems to be its ability to reduce end cost by requiring lower memory bus bit widths(And also therefore fewer memory chips) to achieve a given effective bandwidth.
Would make more sense when manufacturers have 16Gb/2GB GDDR6X chips ready, but whether or not it will deliver enough gains for them tto consider the cost worthwhile for a refresh or something is still to be found out I guess.
I don't think GDDR6X is necessary on a gaming card.
The 20 series does fine without it. It would just jack costs up even more and jack up the power use too.
Also I have a feeling that once again this should have been a low wattage card, but due to Nvidia's pre emptive strike and known performance AMD have cranked on the card again. Which they probably would have done regardless, as no one leaves anything in the tank now.