Same problem =(( I have Sapphire Vega 64 liquid cooling... I still have gtx1080 and there is no such problem... I like my VEGA64 and I don't want to switch back to gpu from Nvidia... Why are AMD employees silent? Is work underway to identify and fix this problem? In the table of contents of this post is the status of the problem "CONSIDERED SOLVED". Why?
In Russian there is such a phrase: in spite of the bus driver, I will pay for the fare, but I myself will go on foot. 
Intel with Nvidia would generally ignore same problems.
I apologize in advance for my English if I write something wrong;) VEGA 64 with HBM is more interesting for me in technical terms than GTX1080 with GDDR. The development of GDDR has reached its maximum and this technical architecture limited on the bitness of the bus. Technically, the VEGA 64 is more productive than the gtx1080. The image on the output of VEGA seemed to me more detailed and stable. When I launched Metro Exodus with a GPU from Radeon, I was pleasantly surprised) I have the impression that Nvidia upscales the image... + in CodMW, GTX is also not as good as we would like I will attach a screenshot to this answer. It shows that there are problems with the shadow. I don't believe the benchmarks, because I think Nvidia is playing a dishonest game. Fps is not always an indicator of technical superiority And the fact that Nvidia has started using HBM in their GPUs for professional purposes tells me that we will see gaming cards with this technology in the next generation of GeForce I'm not a fan of AMD, but I respect them very much for always being one step ahead of the competition.
