fleischr on 27 July 2016
About 80 million.
Considering nVidia did the Shield TV with Tegra X1 at 199 in 2015, I think Nintendo can do the NX with Tegra X2 at around 250 in 2017 - putting it's power level safely in the X1-PS4 range
I predict NX launches in 2017 - not 2016