[Sentionolo]

Different people have different use cases.

Surprise

My DSLR takes pictures bigger than 4k for a few years already. Guess what? You can see a difference between the 4k 27" and a retina display.

And no for this use case you don't need a magic GPU.

And yes I also see a.difference in resolution on my 4k OLED between 4k and 1440p.

[diffeomorphism]

> a retina display.

What does this mean? The "retina" resolutions are all over the place and depend on the device size and type. Also they seem to always be somewhere in the middle of pc options, e.g. for the macbook air 13 you have 1920x1200 (average pc) < 2560x1664 (air or expensive pc) < 3840x2400 (overkill pc). For your example at 27" that seems to be 4k (average pc) < 5k (studio display) < 6k (dell etc.) < 8k (overkill).

[Sentionolo]

Ah im not familiar with it.

For me retina means my Mac book pro 14" which should be 3k x 2k.

[rbanffy]

All displays from Apple have different resolutions. Natively they are comparable to previous Apple displays of half the linear density (800x1280-ish for 13”, 1080 for 15” and so on).

[diffeomorphism]

Okay, so you can "see the difference" (positively, I assume?) of this to a 27" 4k monitor. What about 27" 6k or 14" 4k?

Side rant: Yeah, apple makes great stuff, but the naming is obnoxious. It is not "hidpi" it is "retina", not "high refresh rate" but "promotion" and then you have to look through the marketing material to figure out how '14" retina' compares to a normal UHD+ display.

[Sentionolo]

If I can see the difference I would assume I will be able to see a difference between 27" 4k and 27" 6k.

My canon 80d has a resolution of 6k x 4k.

I also can perceive the sharpness of text.

I don't mind to not run 8k IF driving the display pixels consumes too much energy. The argument of Performance though should not really exist. It's much more pixels true but there are plenty of technics to separate this technically.

Even on gaming they have adaptive rendering but the display resolution itself stays the same.

[diffeomorphism]

The power consumption is not so much on the gpu side. Denser pixels require stronger backlights because less light gets through. So even if you were to run the screen at half the max resolution, you get worse battery life. Similarly, oled is awesome tech, but high brightness requires more energy than led backlights.

[starky]

My comment was based on visual acuity limits. A person with 20/20 vision and a 32" 4K display will hit that limit at around 2ft. Going to a higher resolution you won't be able to see individual pixels anymore unless you have better than average eyesight or sit close to your monitor.

The GPU bit was purely about games and how many pixels you are pushing in games vs cost for a minimum quality and performance level. For content consumption or creation use it isn't a problem.