Having decided to look into the cards the more I have decided they are a little shit. The power draw is the interesting one, if the XT is drawing 225W at 40 CU, what is it going to be at lets say 50 or 60? A higher spec card could hit over 300W, and at a lower power draw would probably match it with a 1660 TI.
Another thing is these boost clocks or was it opportunistic clocks, are these numbers shown against a 2070 accurate for out the box retail cards? Let us not forget the fudged numbers AMD produced for Fury which ended up being a load of bullshit.
Something tells me AMD is going to equip higher end cards with HBM2, which uses considerable less energy then GDDR6.