That's not all. The gtx 2070, being a faster version of 1070, is only $300. Also Nvidia need to sacrifice some profit to have a piece. In the other thread I theorize a extremely down clocked(scalable, which can be pushed to remotely down clocked when plugged in) gp206 inside switch, and with volta all that is needed is a tegra Xavier but more gpu power than the standard, say 1024 Volta cores at 70% the typical clock, and pc range when plugged in.
I also see similar design being incorporate into a surface x which have Amd's navi, designed with scalability in mind.