No, I haven't seen anything as specific as DXO gets on dynamic range and color depth.....the comments I was referring too were more overall impressions of the cameras in their entirety. I'd be surprised if you haven't already seen them but here are some links:
http://www.digitalrev.com/article/ca.../MTQxNjI0OTY_A
https://www.thecamerastore.com/blog/...0-nathan-elson
https://www.thecamerastore.com/blog/...rt-2-mike-drew
http://www.cameralabs.com/reviews/Ca...00_noise.shtml
http://www.cameralabs.com/reviews/Ca..._quality.shtml
My take aways thus far (still waiting on more reviews and to look at a few reviews in more detail) is that the D800 "wins" low level ISO, DR, and resolving power. 5DIII "wins" AF, FPS, ISO noise at ISO > 800-1000. But the "winning" margin isn't great (except DR at low ISO for the D800) and that both of these are really good cameras.