Catalyst 10 btc stand for?

I know that we need a Quadro/Fire Pro card for the 10 bpc thing to work

and it is a very pitiful decision from Nvidia and AMD(not any more?) to

*artificially* limit this for expensive cards we will never buy...



But in the new Catalyst control Center>Properties(Digital Flat-Panel)>Color Depth>

There is this 10 bpc thing...

What is it?

Because here with a Radeon R9 280x DisplayPort + Windows 8.1

neither Photoshop CC 2014 or Zoner Photo studio or NEC Demo can work in 10 bpc.



To enable the 10 btc in Zoner Photo Studio

http://ift.tt/1cunk3u



To enable the 10 btc in Photoshop

http://ift.tt/1cunk3w



10 bit test ramp (link at the page bottom)

http://ift.tt/1cuniIR



NEC 10 bit Color Depth Demo(not sure if it only works with NEC)

http://ift.tt/1cunk3A

Catalyst 10 btc stand for?