We can clearly see that the recently announced Sony A7R II camera showing more details in the image compared to the Nikon D810 DSLR camera.
It’s no doubt the Sony A7R II is better than Nikon D810. We can clearly see more details and better color output in the Sony image captured at 12800 ISO.
A quick Overview of Specification
Nikon D810 features traditional Fullframe CMOS sensor of 36 Megapixels resolution and on the other hand the Sony A7R II features Hybrid CMOS AF sensor with 399 Phase AF points and a resolution of 42 Megapixels.
Despite of having more resolution camera features ISO range of 50-102400, its may be due to the presence of back-illuminated structure inside the sensor but the Nikon D810 is limited to 32-51200 only.