yuv 8bit & 10bit = banding vs RGB csp

[codexredestemp]

It's impossible to avoid banding using color space YUV even with x264 10bit without adding noise through video editor or similar things?
I did many tests with different settings like tune film, grain, input-range, forcing high bitrates as 20000, changing chroma with 8bit and 10bit. I put an image to show what I get:

http://s27.postimg.org/v6rgmo8rz/BANDING.jpg (http://postimg.org/image/v6rgmo8rz/)
played through MPC-HC.

with RGB csp its ok. YUV = banding. I play the video with different players like MPC-HC, VLC, Kmplayer...
It is more noticeable with images with big circular gradients (ringing issue)

I have doing some animations. It is ok to encode with csp RGB?

[vivan]

Try uisng madVR with MPC-HC, default EVR (and VLC and other crap) really suck at color conversions.

[foxyshadis]

They all look banded, even the original 8-bit RGB. You literally can't get rid of banding in 8-bit without dithering (or adding noise), YUV just makes it a little worse.