this post was submitted on 27 Oct 2025
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A new study published in Nature by University of Cambridge researchers just dropped a pixelated bomb on the entire Ultra-HD market, but as anyone with myopia can tell you, if you take your glasses off, even SD still looks pretty good :)

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[–] pixeltree@lemmy.blahaj.zone 1 points 8 minutes ago

Personal anecdote, moving from 1080p to 2k for my computer monitor is very noticeable for games

[–] OR3X@lemmy.world 15 points 2 hours ago (2 children)

ITT: people defending their 4K/8K display purchases as if this study was a personal attack on their financial decision making.

[–] Nalivai@lemmy.world 1 points 1 hour ago* (last edited 1 hour ago)

Right? "Yeah, there is a scientific study about it, but what if I didn't read it and go by feelings? Then I will be right and don't have to reexamine shit about my life, isn't that convenient"

[–] treesquid@lemmy.world 1 points 1 hour ago

My 50" 4K TV was $250. That TV is now $200, nobody is flexing the resolution of their 4k TV, that's just a regular cheap-ass TV now. When I got home and started using my new TV, right next to my old 1080p TV just to compare, the difference in resolution was instantly apparent. It's not people trying to defend their purchase, it's people questioning the methodology of the study because the difference between 1080p and 4k is stark unless your TV is small or you're far away from it. If you play video games, it's especially obvious.

[–] Sir_Premiumhengst@lemmy.world 7 points 2 hours ago (2 children)

It does make a difference for reading text like subtitles or navigating game menus.

[–] Nalivai@lemmy.world 1 points 1 hour ago (1 children)

If my quick calculations are correct, the 70 inches screen at 1080p has a pixel size of about 0.7 mm give or take, where 4k would be about 0.1-0.2.
0.1mm is a smallest size of a thing a human could potentially see under very strict conditions. A pixel smaller than a millimeter will be invisible from a meter away. I really, really doubt its humanly possible to see the difference from the distances a person would be watching tv.

The thing is, the newer 4k tvs are just built better, nicer colour contrast, more uniformed lighting, clearer glass, and that might be the effect you're seeing

[–] Sir_Premiumhengst@lemmy.world 1 points 38 minutes ago

Uh... Hol up. So if we can maybe see down to 0.2 mm and the 1080p screen has 0.7 mm pixels... That's pretty much what I'm saying. 1080p is noticeably grainy.

The text in 4k looks crisper. I concur I can't count individual pixels, but reading game menus in 1080p feels rougher and makes me squint. Reading in 4k feels more like reading on print paper or a good e-eeader.

This and yes, the build quality of newer screens also contributes.

[–] Soup@lemmy.world 1 points 1 hour ago

This is literally the only truly important part after a certain threshold. I have a 34”, 1440p monitor and the text is noticeably better than any 1080p screen. It’s entirely legible and 4K would not provide a new benefit except maybe a lighter wallet. It’s also 100Mhz which is again beyond the important threshold.

The only time I can see 4K being essentially necessary is for projectors because those screens end up being massive. My friend has a huge 7’ something screen in the basement so we noticed a difference but that’s such an outlier it should really be a footnote, not a reason to choose 4K for anything under 5’(arbitrary-ish number).

[–] oppy1984@lemdro.id 6 points 2 hours ago

I have friends and family with good eyesight and they can tell a difference. Sadly even with Recent prescription lenses I still can't see a difference. Eh, at least I can save on TV's since 1080p is cheaper.

[–] caboose2006@lemmy.world 3 points 2 hours ago

I've been saying this for years.

[–] the_riviera_kid@lemmy.world 21 points 5 hours ago (5 children)

Bullshit, actual factual 8k and 4k look miles better than 1080. It's the screen size that makes a difference. On a 15inch screen you might not see much difference but on a 75 inch screen the difference between 1080 and 4k is immediately noticeable. A much larger screen would have the same results with 8k.

[–] mean_bean279@lemmy.world 3 points 1 hour ago

I like how you’re calling bullshit on a study because you ~feel~ like you know better.

Read the report, and go check the study. They note that the biggest gains in human visibility for displays comes from contrast (largest reason), brightness, and color accuracy. All of which has drastically increased over the last 15 years. Look at a really good high end 1080p monitor and a low end 4k monitor and you will actively choose the 1080p monitor. It’s more pleasing to the eye, and you don’t notice the difference in pixel size at that scale.

Sure distance plays some level of scale, but they also noted that by performing the test at the same distance with the same size. They’re controlling for a variable you aren’t even controlling for in your own comment.

[–] kadu@scribe.disroot.org 6 points 2 hours ago

It’s the screen size that makes a difference

Not by itself, the distance is extremely relevant. And at the distance a normal person sits away from a large screen, you need to get very large for 4k to matter, let alone 8k.

[–] Mr_Dr_Oink@lemmy.world 17 points 4 hours ago (5 children)

You should publish a study

[–] SaveTheTuaHawk@lemmy.ca 10 points 4 hours ago

And publish it in Nature, a leading biomedical journal, and claim boldly.

[–] richardwallass@sh.itjust.works 5 points 4 hours ago

With 44 inch at 2,5m

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[–] SocialMediaRefugee@lemmy.world 2 points 2 hours ago (1 children)

For a 75 inch screen I'd have to watch it from my front yard through a window.

[–] Smokeless7048@lemmy.world 1 points 2 hours ago

Have a 75" display, the size is nice, but still a ways from a theater experience, would really need 95" plus.

[–] SaveTheTuaHawk@lemmy.ca 3 points 4 hours ago

Depends how far away you are. Human eyes have limited resolution.

[–] Surp@lemmy.world 27 points 6 hours ago (3 children)

8k no. 4k with a 4k Blu-ray player on actual non upscaled 4k movies is fucking amazing.

[–] HugeNerd@lemmy.ca 3 points 2 hours ago

I think you're right but how many movies are available in UHD? Not too many I'd think. On my thrifting runs I've picked up 200 Blurays vs 3 UHDs. If we can map that ratio to the retail market that's ~1% UHD content.

[–] Stalinwolf@lemmy.ca 10 points 6 hours ago* (last edited 6 hours ago) (1 children)

I don't know if this will age like my previous belief that PS1 had photo-realistic graphics, but I feel like 4k is the peak for TVs. I recently bought a 65" 4k TV and not only is it the clearest image I've ever seen, but it takes up a good chunk of my livingroom. Any larger would just look ridiculous.

Unless the average person starts using abandoned cathedrals as their livingrooms, I don't see how larger TVs with even higher definition would even be practical. Especially if you consider we already have 8k for those who do use cathedral entertainment systems.

[–] brucethemoose@lemmy.world 9 points 5 hours ago* (last edited 5 hours ago) (2 children)

(Most) TVs still have a long way to go with color space and brightness. AKA HDR. Not to speak of more sane color/calibration standards to make the picture more consistent, and higher 'standard' framerates than 24FPS.

But yeah, 8K... I dunno about that. Seems like a massive waste. And I am a pixel peeper.

[–] JigglySackles@lemmy.world 1 points 3 hours ago (1 children)

For media I highly agree. 8k doesn't seem to add much. For computer screens I can see the purpose though as it adds more screen real estate which is hard to get enough of for some of us. I'd love to have multiple 8k screens so I can organize and spread out my work.

[–] brucethemoose@lemmy.world 2 points 1 hour ago

Are you sure about that? You likely use DPI scaling at 4K, and you’re likely limited by physical screen size unless you already use a 50” TV (which is equivalent to 4x standard 25” 1080p monitors).

8K would only help at like 65”+, which is kinda crazy for a monitor on a desk… Awesome if you can swing it, but most can’t.


I tangentially agree though. PCs can use “extra” resolution for various things like upscaling, better text rendering and such rather easily.

[–] SpacetimeMachine@lemmy.world 1 points 3 hours ago (1 children)

The frame rate really doesn't need to be higher. I fully understand filmmakers who balk at the idea of 48 or 60 fps movies. It really does change the feel of them and imo not in a necessarily positive way.

[–] brucethemoose@lemmy.world 3 points 3 hours ago* (last edited 3 hours ago)

I respectfully disagree. Folk's eyes are 'used' to 24P, but native 48 or 60 looks infinitely better, especially when stuff is filmed/produced with that in mind.

But at a bare minimum, baseline TVs should at least eliminate jitter with 24P content by default, and offer better motion clarity by moving on from LCDs, using black frame insertion or whatever.

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[–] DarkAri@lemmy.blahaj.zone 10 points 5 hours ago

4k is definitely a big improvement over 1080p. The average person probably doesn't have good eyesight, but that doesn't mean that it's a waste for everyone else.

[–] lepinkainen@lemmy.world 24 points 7 hours ago (1 children)

4k with shit streaming bitrate is barely better than high bitrate 1080p

But full bitrate 4k from a Blu-ray IS better.

[–] kadu@scribe.disroot.org 2 points 2 hours ago* (last edited 2 hours ago)

But full bitrate 4k from a Blu-ray IS better.

Full Blu-Ray quality 1080p sources will look significantly better than Netflix 4K.

Hence why "4K" doesn't actually matter unless your panel is gigantic or you're sitting very close to it. Resolution is a very small part of our perceived notion of quality.

[–] nyan@lemmy.cafe 3 points 4 hours ago* (last edited 4 hours ago)

The question for me isn't whether or not there's a difference that I might be able to see if I were paying attention to the picture quality, it's whether the video quality is sufficiently bad to distract me from the content. And only hypercompressed macroblocked-to-hell-and-back ancient MPEG1 files or multiply-recopied VHS tapes from the Dark Ages are ever that bad for me. In general, I'm perfectly happy with 480p. Of course, I might just have a higher-than-average immunity to bad video. (Similarly, I can spot tearing if I'm looking for it, but I do have to be looking for it.)

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