Leadbetter from Digital Foundry pretty much said the same thing so it's not an exaggeration. The tech expert from Gamespot made a similar observation.
I agree as well based on my time.
When standing still, Infinite Warfare (which is still the only one I've seen myself) looked native. Each and every pixel lined up with each pixel on the 4K display. It looks 100% native.
The compromises appear in motion where you can see mild artefacts that reveal a loss in detail. From a normal viewing distance, this all but disappears.
Two things "help" - flat panels still aren't as fast as CRT televisions when displaying 60hz content. Even black frame insertion isn't enough on models which support it. This extra blur, even when minor, helps conceal these artefacts.
Secondly, with post processing in use, the issues can be covered up pretty easily as well.
It's quite convincing, to say the least.
Because anything not native is blurry mess. /s
I have two things to say to that.
For one thing - checkerboarding, based on what I've seen, does not introduce blur. Pixels are razor sharp and can appear native. That won't be the case with every game, however.
...but more importantly, the pixel density of a 4K panel is SO high that native resolution starts to matter a whole lot less. I've tested this so many times with PC games. Running at 1440p on a 4K screen, the results are still incredibly clean and sharp. I generally sit between 5-6ft from my 55" display, for the record.
Upscale blur is a huge issue at lower resolutions but once you cross the 1080p barrier on a 4K display, the results are very good.
