Here you go; here's what a full-fat GP102 can do:
http://hothardware.com/reviews/nvidia-quadro-p6000-and-p5000-workstation-gpu-reviews?page=6
A 20% boost over the 1080 looks good.
http://hothardware.com/reviews/nvidia-quadro-p6000-and-p5000-workstation-gpu-reviews?page=6
A 20% boost over the 1080 looks good.