Ok. But there you are at 300-400% enlargement, you can read the pixels. I don’t see really the purpose , or the point you want to prove.
The image is viewed in 100% on the monitor and yes.....when I take an image then it is enlarged a bit compared to 100% view.
I have never had a FX camera and D5, D6 is considered the "ISO monster" of what Nikon can deliver and I think it is state of the art what is possible today regarding noise performance for a FX sensor?
I am just a little bit disappointed by the performance and to me it looks like the camera has a fault?
I think your D5 images of car racing images on Flickr looks much cleaner on my monitor.
So it is more a concern.....than trying to prove something.