D800E @ 12,800
https://dl.dropboxusercontent.com/u/23953768/D800E ISO12800.tif
D810 @ 12,800
https://dl.dropboxusercontent.com/u/23953768/D810 ISO 12800.tif
Not really any different.
The D810 seems to have less moiré and aliasing issues, but that's because the 810 has genuinely had all that crap removed whereas the 800E has a corrective system. Differences are incredibly minor if you ask me, and in real world use, would present no tangible difference in ISO performance.
Martin was suggesting it was amazing at high ISO. If meant it's as amazing as the D800/E then I agree, but there's certainly no improvement over the 800/E
Sorry but again in real world photography shooting you are again wrong there is a big difference in iso capabilities between the D800E and D810 I know this as I shoot both. How do you base your above assumption? by online reports or actual experience with the two cameras curious as to your response...
Wilky