This card is REALLY interesting if you need FP64 in OpenCL. As in holy shit batman interesting.
The closest competitor of this card is the Titan V, and that thing is 3000 USD, not 700-800. Plus this thing has even more memory bandwidth, and 4 GB more memory than the Titan V.
I am seriously considering buying a Radeon 7 in the next 2 years, purely for FP64 OpenCL compute. Gotta learn OpenCL first, but I have a lot of FP64 code that could probably be rewritten for GPUs.
PS: This card has 1/4 rate FP64, so around 3.5 TFLOPS. Most other consumer cards have 1/8, 1/16 or 1/32 rates. The Titan V has 1/2, the old Kepler based Titans have 1/3, and Tahiti cards have 1/3. So pretty much the Titan V is the only competition for this card.