REDcode Ratio Totem Pole

[Max Field]

Was trying to find a nice comparison thread on REDcode, comparing it with the other compression methods out there for camera recording.

The one thing I really like about RED is they give you a nice little calculator to see how much storage you need, though the redcode part of it leaves me in a guessing game:
https://www.red.com/recording-time

I see the compression can go all the way down to 20:1 but is that just a garbage unusable image? At least better than H264? What redcode could compare to 4444XQ ProRes for example? I see people saying 6:1 is ideal but that really chews through the cards.

Thanks for any input from REDveterans!