the professional 10 bit is using openGL on a 8 bit surface to hack the 2 missing bits in the alpha channel. and programs that use that you need a professional card to get 10 bit in the GPU driver. the GPU output has nothing todo with this!
since windows 7 we have 10 bit output to the GPU using directx 11 on any consumer card. you just need a fullscreen exclusive d3d11 surface and this is obviously not usable for photoshop but easily with game or a video renderer.
high bit deep output is a well known and for years used feature of madVR.
do you even read your links?
https://nvidia.custhelp.com/app/answ...11/kw/10%20bit