Why is everyone assuming that Navi is purely low end cards? From the hints we've gotten from Lisa Su and people at AMD it seems like it is a full range of GPU's. Will there be a RTX 2080ti competitor? Maybe not, but from all of the info and hints it seems to me that Navi is a full product range, from low end to high end, with MAYBE the exception of a 2080ti type performance. Maybe we'll see Navi scale to RTX 2080 only, but even that seems strange since Radeon 7 is already competing with the 2080, so I think they will have a GPU that is going to compete with the RTX 2080ti.
Everyone needs to understand that Navi is a new architecture and its been in development for 3 years and it is on the latest 7nm process, I expect a huge jump in performance, much the same way Polaris was going from 28nm to 14nm.
Yeah AMD are late to the party, but if they are able to utilize 7nm properly and in their sweet time really optimized their architecture, they are going to come out very strong. In fact I expect every single GPU they release to be about 10% faster than their Nvidia alternative for the same price.