[Warner306]

The bit depth does increase the number of colors, but only between the existing black and white. The range remains the same. I believe I can see the decrease in noise on my TV vs. ordered dithering, so I don't believe it is worthless. It does appear to increase image quality, at least, to my eyes.

This is what Google says:

"That sounds like plenty, and to the naked eye, it is. But subtle differences between those 256 shades, impossible with 8-bit color, can help create depth and a sense of reality. That's where deep color comes in. With 10-bit color, you get 1,024 shades of each primary color, and over a billion possible colors."

the source doesn't have 1024 shades of informations only lossy 235/240.

on a 16 bit test image you get a different result but with a lossy 8 bit source the difference is so small.

8 bit or 10 bit output doesn't change the type of dithering madVR uses.

I didn't say it changed the dithering, just that the decreased dithering added to the image seems to make the image less noisier to me.