https://wccftech.com/amd-confirms-navi-gpu-launching-in-q3-2019/

So AMD has just officially confirmed Navi GPU launching in Q3 2019 (something we have exclusively talked about before) during their earnings call. The Navi GPU is the anxiously anticipated successor to the Vega architecture and has been in the pipeline for quite a few years now. The most likely event for a Q3 launch is Gamescom 2019 from 21 to 24 August (caution: this is just an educated guess, not a sourced comment).

If you remember the exclusive I published on Navi’s launch date, you will remember I said the GPU will launch roughly a month or so after Ryzen 3000 series (7nm) which is expected to launch at Computex. That means we are looking at a launch by late July – mid-August. Now that AMD has confirmed a launch in Q3, the rumour mill is sure to switch into high gear leading up to the days of the actual launch. This is going to be the biggest gaming launch since their Vega reveal in late 2016.