Apparently the AMD Fury is the world's fastest GPU according to AMD's Matt Skynner
http://www.hardwareluxx.de/index.php/news/hardware/grafikkarten/35595-amd-wird-fiji-gpu-alies-radeon-fury-x-am-16-juni-offiziell-vorstellen.html
http://wccftech.com/amd-hbm-fury-x-fastest-world/
Considering canceling my 980 ti order, still hasn't shipped from newegg.
I usually don't suggest waiting for another piece of technology. Like is short, enjoy your shit now. But AMD is like right around the corner, what is it 2-3 weeks? I'd wait. It usually takes me 2-3 weeks to install a video card and get the overclocked locked in.