For my Canon Pro100, in trying to figure out what all this meant, I came across a good explanation. I'm guessing some/most of you might already know this... 
There's also 4 photos showing the differences.
https://web.tech.uh.edu/digitalmedia/materials/4373/color_rendering_intent/cri.html
There's also 4 photos showing the differences.
https://web.tech.uh.edu/digitalmedia/materials/4373/color_rendering_intent/cri.html