Let's assume that is completely real, right. It's a tiny, weeny bit faster than a 1080ti.
So even if the 1180 were 25% faster (which would be what I would expect with my huge grain of salt) then what will it be good for? 4k? yeah, maybe. I mean, you still don't need more than a 1080ti for 4k. So that means that these are both 4k cards. How many people actually have a 4k monitor to drive? 'cause the last time I looked it wasn't many.
GPUs are only as exciting as the games coming out for them. And right about now there are none that even make me tingle a little bit. The new Metro almost does, but I know I can play it on what I already have (either a Fury X, Titan XP or Xbone).
I will also assume the prices are going to be bat s**t insane, which kinda makes me just yawn.