Nvidia did just like Roy Taylor said they would, come out with a chip that does not address TAM. The GP104 is 317 mm2
https://www.techpowerup.com/gpudb/2839/geforce-gtx-1080 and does not address a large market. Especially at a price point of $430 and $700 even though they claim msrp of $380 and $600 which all the Nvidia bought tech sites will quote. Good luck with an AIB selling at that msrp.
When Roy made his comments everyone started saying Polaris 10 won't compete, and maybe they won't compete with the 1080. I tend to look at his comments in reference to P10
and P11. AMD from a business perspective is looking to APPLE and back to school laptops, console upgrades and also mainstream desktop. Laptop market is larger than desktop. Consoles are also a large market and then add in Apple.
They showed what a P11 chip can do back in
December so Laptop manufacturers could plan their new 2016 laptops, console manufactures can consider upgrades and Apple could also plan their next generation products. Manufactures need a long time to design a new product and want to show them off at Computex. The fact that GP106 appears late to the game is a significant business misstep.
Desktop mainstream is also available to AMD with the release of GP104 geared to higher end. How P10 and 11 perform with VR will be an important factor. If you can provide 90 fps for the current VR headsets with a smaller gpu at less watts and lower price then why buy a more expensive high end gpu which provides the same results. For the enthusiasts (small TAM) such as many on this site they will need to decide if spending $700 or more on a mid range card for maybe 30% performance improvement over a 980TI or Fury X at 1080P and probably less at 4K is a good idea especially when 2017 comes with even better gpu's. The 1070 is still a secret with performance and Nvidia probably has a clue that P10 is competitive with it and is waiting for AMD to tip their hand. I trhink that if AMD captures 35% of these sales it will be a great success along with capturing OEM sales for entry level desktops.
Computex and design wins should be an indication of how successful AMD will be with Polaris and Bristol Ridge offerings. Nvidia to this point have not indicated that they are ready with GP106 but they may have a few surprises in store. Time will tell but it appears from what we know at this time that AMD is looking at a larger TAM than Nvidia.