I am thinking of China underselling it like they do dumping steel in the US was the chain of thought there.Pricing of manufacturing of these kinda of parts, doesn't matter if its in China or the US most of it is automated. The steps of designing and testing the chip can be done anywhere in the world.
Just like how AMD and nV work design is done in one of their many design groups around the world, they have their parts made at any fabs they want but testing is done in India, cheaper for them, to do it there. Intel can be doing this too, fabs are here in the US but that doesn't mean they are designing and testing here in the US (although I think design is done here in the US, not sure about testing). But even if Intel is doing everything here in the US, AMD being fabless, off sets the cost (GF needs to make a profit too)
Really if you make a whole GPU with more transistors, ram, power circuits, plugs, board and sell it cheaper then Intel's processors by a long ways. Even a Titan X Pascal is cheaper then some of Intel's CPU's and it is at a very profitable price. In other words AMD is maybe getting back to reality of pricing and hopefully making a decent profit to move on and continue in business. We will just have to wait for official AMD MSRP pricing for Zen vice expecting something that maybe ridiculous. Well maybe by March of next year will be my upgrade point for one of my rigs, was expecting June but if launched in January that will be great.