"Enthusiasts fond of space-saving gaming PCs have dreamed of a graphics card that runs as fast as a factory-overclocked Nvidia GeForce GTX 980 at Full HD resolution, and even faster at Ultra HD, while being smaller, lighter and even a bit less power hungry."
They did? And that's oddly specific...
Anyway, it's a good card, but too expensive, as the extra performance over a 970 isn't worth $300.
Also, nvidia needs only to release a mini it's 989, and this niche will be filled.
It's actually a great card, and I would use it if I had it, but the value just isn't there.