It's easier to just get the result empirically. I once literally did this experiment in an office where we had a bunch of similar-looking Dell displays from dif

It's easier to just get the result empirically. I once literally did this experiment in an office where we had a bunch of similar-looking Dell displays from different eras, with a range different native resolutions: It was pretty easy to set up a blind trial with 5 monitors by putting cardboard around the monitor bezel and stand, and asking people which one looks better. Everyone, even nontechnical people such as HR and sales, can identify the 4k monitors, super reliably, at a distance waaaay beyond what optometrists claim should matter. Of course you could argue that the experiment was confounded by backlights or color calibration or monitor age whatever. But IMHO the result is so stark that it would easily survive even if you repeated the experiment with a bunch of identical 4k monitors, and set some of them to crappy low resolutions.