Oops, didn't see the comparison to the GTX at first.
Well it's essentially the same card as before, just with a huge over clock and probably a matching pricetag. However, the OC is on par with the stock clock of the XTX which did really poorly against the GTX.
All the extra boxing at the tail end of the card is really unnecessary.
As the paper launch is today, standard reviews are out. Pretty disappointing, but I guess Nvidia is in a position to do what they want at this point.
I believe they sum it up best in the conclusion.
http://www.legitreviews.com/article/496/1/ As for pricing, yes they will be expensive. Try over $800 US on for size.

Check this blurb from
ExtremeTech for more info.
Yeah, $800+??!!! No thanks, I'll water cool mine that is just a shade below that OC right now. I can't believe they're charging that premium for that little gain over the GTX.