Fudzilla published AMD has 7nm Navi GPU up and running in its lab
A quote from the article:
While it is clear that the Navi-based graphics card will launch in the second half of 2019, with the best scenario rumored to be the third quarter 2019, the good news is that the GPU is up and running in AMD labs. Of course, this is probably one of the early versions as AMD has still a long way before it has a final product ready, as there is a lot of work involved into bringing a new generation of graphics cards to the market.AMD has 7nm Navi GPU up and running in its lab
Our sources also suggested that the 7nm GPU looks better than expected. Unfortunately, our source did not go into specifics so we do not know if this means that yields are good or that the actual 7nm GPU is giving a performance/power consumption. Bear in mind that these are some of the first details coming regarding the 7nm Navi GPU, in addition to earlier rumors suggesting that we could see the GTX 1080 performance-level at $250 price range.