http://www.pcgamer.com/geforce-gtx-1070-ti-review/

2017 has been a great year for technology, with more major CPU launches in a single year than I can recall ever seeing. We've also had a lot of excitement in the GPU arena, with Nvidia's GTX 1080 Ti, Titan Xp, Volta GV100 for deep learning, and AMD's RX Vega. Unfortunately, Vega was highly disappointing. On paper Vega looked like it might be a contender. Instead, we got a power-hungry GPU that couldn't even claim a decisive win over Nvidia's parts that launched a full year earlier.

But competition in the graphics card market can be brutal. The 1070 trails Vega 56 by as much as 10-15 percent in individual games, and on average it's a few percent slower. Never mind the supply problems AMD continues to experience several months after the official launch, with higher than expected pricing. Never mind the distinct lack of custom Vega cards—a few are coming, but Vega 56 more than Vega 64, and the only cards in stock in the US currently consist of reference model designs. But AMD winning at any level just won't do, says Nvidia, so now we have the GTX 1070 Ti.