I've not read it yet, but is this a card that can work with any PC? http://www.techspot.com/review/1024-and-radeon-r9-fury-x/
Also, this stuff looks amazing: http://www.techspot.com/news/61225-photorealistic-scenes-created-unreal-engine-4.html
Yes, it'll work with any PC, assuming you have enough PSU to power it. Honestly though, The 980 Ti is the one to go for in this price range.
Yeap. Also this latest release from AMD (Fury and 390 series) was (again) a mess that only created resentment and disappointment. Sometimes I have the feeling that the company is run by idiots.
Pretty sure you're right. I was an ATi/AMD customer for 12 years. Their lousy drivers and lack of support caused me to dump them and I will never look back. The Radeon 9700 was a great card a dozen years ago but with monthly driver updates and the 3 years I ran it, only about 3 drivers versions worked.
No, it's about case compatibility as well because of the thick AIO cooler. It's also about drivers as xxJackxx said. You just have to look at Project Cars benchmarks to see how irresponsibly AMD can deal with game optimization.