The 5700XT is for sure near 50% better than the 1070, but is also about double the price. Checks out right?
But I was talking the regular 5700, which is much closer to the 1070 with only a 20% gap in performance, but the 1070 being a whole $100 cheaper than the 5700.
I was just making the point that price wise the 1070 makes a lot of sense when looking at price to performance. Streetguru mentioned something in the RX480/RX580 range which is a great recommendation at a $80-$130 price range. But for just that little more, you can get a used 1070 at $200, which is about 50% faster than the RX580 and family.