read but never totally trust any reviews online, especially no-no with reviews just give words or graphs without illustrating samples. Anybody, including you guys and me, can put those words and graphs online without a camera in hand.
Does it make sense when DxO puts D800 over D4 and Markii over Markiii? It's the business (not charity), stupid.
Pls use your commom sense to think. The oddity is very clear, but why they purposefully do that? It's a big question.
I guess DxO is playing a huge Black Humor game to extract those stupid guys, who believe on their nonsense conclusion, out of commom photographers. And they are laughing and enjoying reading what is going on here. Have fun, DxO, you are a true comedy writers.
If you have time, with your own naked eyes and non biased mind, should take looks on:
http://www.cameralabs.com/reviews/Canon_EOS_5D_Mark_III/Canon_5D3_vs_Nikon_D800_noise.shtml;
http://www.imaging-resource.com/;
http://www.dslrnewsshooter.com/2012/04/01/video-shootout-nikon-d800-vs-canon-5d-mkiii/;
http://nofilmschool.com/2012/04/5d-mark-iiid800-hands-on-review-part-3/;
Of course you need powerfull PC, especially video card, and high resolution monitor. If not, it would be tough. Have fun.