Originally Posted by Murilo
Ok interesting, does not sound like you have the option for 12 bit 4:2:2, the reason for it however is 10 bit 4:2:0 according to spec is only supported at 60hz, while 4:2:2 12 bit is supported at both 60hz and 24hz, and is free of banding and it was also confirmed using a vertex it does not internally down sample to 8 bit like some other realtek players do before outputting the signal. Sounds like you dont have the option or if bandwidth is a concern or you value 60hz hdr content (I cant say I have watched any) it makes more sense for you. Everyone has different uses. For me and discussing with others 12 bit 4:2:2 is the way to go since its supported at 60 and 24 fps and is free of banding as long as you dont run into bandwidth limitations.
10 bit 4:2:0 60hz 4k supports every possible mode up to 10 bit 4:2:0 60hz 4k.
It supports every refresh rate and will run at the native refresh rate, including 23.976, 24, 30, 50, 59.94, and 60hz.
It supports 8 and 10 bit color, so there will never be banding with standard content.
It supports Rec709 and BT2020 (natively if the colorimetry function is enabled in the setup menu, with tone mapping if it is not)
And it supports all resolutions up to 4k, although it upscales lower resolution content to 4k internally, not passing it in its native format.
12 bit content would play at 10 bit, and content with full 4:4:4 chroma subsampling would be compressed to 4:2:0. I have never run into 12 bit content so I can't tell you if you would see banding (possible since at 10 bit you have fewer colors), and as for the chroma compression, I have yet to notice any artifacting or degradation due to this. However, I don't pay close enough attention to see if I have ever run across 8 bit rec709 4k with 4:4:4 chroma subsampling, and if so, if it was noticeably different when played with compression vs without. I have yet to notice a difference between a bluray played in a good player vs an uncompressed MKV played on the shield, although I stopped comparing them two years ago and rarely use the bluray player.
If you can set your shield to 12 bit 4:2:2 60hz BT2020 4k, then do so, it hurts nothing. However, if you can only set your shield to 12bit 4:2:2 24hz bt2020 4k, then you will have issues with some content because you cannot go above 24hz with that setting.
I have never noticed banding in Netflix on the shield, and I am particularly sensitive to it. PSVue streams all content in 10 bit color, 60hz, 1080p, so if you use it and set your shield to less than 60hz or less than 10 bit, you will have issues either with severe frame loss or with color banding. I dealt with both of those when my display was limited to 10gbps and I had to constantly switch HDMI modes to fit the app. But Netflix has always played at top quality for me, and with a 150" wide screen, you tend to notice issues.
Also keep in mind, if your connection slows down, most streaming services will drop their bitrate down and banding, artifacting, and tiling can occur, and this has nothing to do with your HDMI settings. These are compression issues.