Why does 10-bit save bandwidth (even when content is 8-bit)?
Along with many other encoding tools, 10-bit compression is an addition to AVC/H.264 that was not available in MPEG-2. The primary intent was to enable processing videos in their native contribution format.
But it appears that it also saves bandwidth compared to using only 8-bit compression: less bit-rate is needed for the same output quality or conversely, the quality is increased when the same transmission bit-rate is used.
Read more : Why does 10-bit save bandwidth?
Read more : Why does 10-bit save bandwidth?