This is surprising to me because 4:2:0 should require less bandwidth.

My display (Sony XBR-65X850C) is purported to support 10-bit.

I found a comparison video over at avs forum to test. The 10 bit side looks less banded than the 8-bit side, irrespective of my color depth setting, however the 10-bit side doesn't look perfectly smooth either.



My question is twofold:.

First, is there a comprehensive list of color depth supported at different frequency and color formats, similar to:



... and, secondly, can anyone devise a test for support whereby I could actually see a difference?

Thanks in advance.

I had a couple of links removed, presumably because I'm new.

For those interested:

The first was a forum post with a 10 bit display test from avs forums that comes up first or among the first results when Google searching "10 bit panel test", and similar queries.

The second was a chart from an HDMI 2.0 FAQ at HDMI org. The row headings are resultions@hz and the column headings are bit rates 8/10/12/16. The fields are then populated with chroma subsampling rates (e.g. 4:4:4 or 4:2:0).

Try Google searching "What are the 4K formats supported by HDMI 2.0?"

Have you tried the RGB for output color format?
 
I feel it could be a Nvidia driver issue/our misunderstanding cause i only get 8 and 12 bit choices for my 1080p sony tv when the tv is 24bit capable.
 
https://www.dpreview.com/forums/post/53072517

Make sure you have an HDMI cable that is fast enough.  Amazon has an "Amazon Basics Latest Revision" HDMI cable that is low cost and works great.
 
I had a similar issue and thought it was the card, driver, monitor...I put in the above cable and can do full color at 60 Hz.

With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

raidflex
With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

or is it 10bit per channel meaning 10 for red, 10 for green and 10 for blue making it 30bit?

Brimy

raidflex
With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

or is it 10bit per channel meaning 10 for red, 10 for green and 10 for blue making it 30bit?

It's the same thing, just some people use the old way of saying it and others use the new way.

arestavo

Brimy

raidflex
With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

or is it 10bit per channel meaning 10 for red, 10 for green and 10 for blue making it 30bit?

It's the same thing, just some people use the old way of saying it and others use the new way.

Okay.

raidflex
With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

I'm not sure why you'd use compressed color format instead of RBG. While you won't notice in games, the desktop, especially text, is objectively worse. Windows Desktop is natively 8 bit so using 10 bit gains you nothing. I've never seen a 16 bit per channel setting.

HeavyHemi

raidflex
With my Samsung JS8500 and GTX 1050 I receive 4k 60Hz 4:4:4 8-bit, 4:2:2 10/12-bit and 4:2:0 10/12/16-bit. This is using NVIDIA 375.70 and Windows 10 pro x64. 
 
You cannot do 4k 60Hz 4:4:4 10-bit because the HDMI spec does not have enough bandwidth. 
 
Also make sure that your TV is set to UHD deep color. I have my color setting on ycbcr422 10-bit, but you can use RGB.

I'm not sure why you'd use compressed color format instead of RBG. While you won't notice in games, the desktop, especially text, is objectively worse. Windows Desktop is natively 8 bit so using 10 bit gains you nothing. I've never seen a 16 bit per channel setting.

I have a separate HTPC for just Movies/TV using Kodi.