Wait wut? They say it is 60% faster than a Titan X - isn't the GTX1080 around a third faster than a Titan X at 4K:
https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080/26.html
That would make the new Titan X around 20% to 25% faster in games??
To be fair, the 980Ti/Titanx on Maxwell was only around 30-35% faster than the 980 stock for stock.