AMD Radeon GPU roadmap: Navi in 2019, next-gen in 2020

AMD hosted their Raven Ridge APU event before CES 2018, with a few teases of their GPU architecture roadmap that teases a Vega refresh on the newly-used 7nm node in 2018.

We can see that Navi is after the Vega refresh, which should drop sometime in 2019 while the 'next-gen' GPU architecture will be released on the refined 7nm+ node, and hit graphics cards sometime in 2020.