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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[–] treesquid@lemmy.world 49 points 1 day ago (4 children)

4k is way better than 1080p, it's not even a question. You can see that shit from a mile away. 8k is only better if your TV is comically large.

[–] balance8873@lemmy.myserv.one 21 points 1 day ago* (last edited 1 day ago) (7 children)

I think you overestimate the quality of many humans' eyes. Many people walk around with slightly bad vision no problem. Many older folks have bad vision even corrected. I cannot distinguish between 1080 and 4k in the majority of circumstances. Stick me in front of a computer and I can notice, but tvs and computers are at wildly different distances.

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[–] W3dd1e@lemmy.zip 13 points 1 day ago* (last edited 1 day ago)

I didn’t get why HD tv was relevant at all. I really did not understand that for a couple years.

Then I got glasses.

I suspect 4k matters for screens of a certain size or if you sit really close, but most of us don’t so it doesn’t matter.

[–] flop_leash_973@lemmy.world 1 points 19 hours ago (1 children)

Anecdotally at average viewing distances on my 55" TV I can't really tell a difference. If I had an enormous TV maybe I would be able to tell. 1080 > 2160 is for sure not the leap 720 > 1080, or 480 > 720 was in the average environment that's for sure.

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[–] brucethemoose@lemmy.world 4 points 1 day ago* (last edited 1 day ago)

It's all about the baseline.

Cinematic, Blu Ray bitrate 1080p vs 4K is not too dramatic.

Compressed streams though? Or worse production quality? 4K raises the baseline dramatically. It's much harder to stream bad-looking 4K than it is 1080p, especially since '4K' usually implies certain codecs/standards.

[–] elver@feddit.uk 5 points 1 day ago (2 children)

You know what would sell like hot cakes? A dumb TV with Dolby Vision support. I went down the rabbit hole of finding a large HDR monitor and adapters to trick end devices to output player-led Dolby Vision to a HDR monitors, because I don't need my TV to have a complete OS with streaming services and adverts integrated.

In the end I couldn't find anything that didn't have drawbacks. It's something that could easily exist but there are no manufacturers bold enough to implement it.

Streaming tech moves so fast, I want to add it to my TV through hardware like a fire stick, not to become dependent on the TV manufacturer putting out updates until it's 'Out-of-support'.

I went with a TV and disabled as much of the junk as I could with a service remote and just never connected it to the internet, but jumping through these hoops seems so silly.

[–] the_riviera_kid@lemmy.world 4 points 1 day ago

So dont give your tv internet access and plug in a pc.

[–] glitch1985@lemmy.world 3 points 1 day ago (1 children)

All tvs are dumb tvs if you don't connect them to the internet.

[–] elver@feddit.uk 2 points 1 day ago (4 children)

I get where your coming from, and I have done that, but I get constant popup reminders that "You are not connected to the internet, would you like to set this up now to access exciting apps and features?" And on top of that, I've had to switch to a universal remote, because the one that comes with the TV activates a cursor on screen when it senses movement which is a "feature" you can't switch off. I just want a remote with on/off, input, and volume control 😭

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[–] 46_and_2@lemmy.world 1 points 19 hours ago* (last edited 19 hours ago)

If you’re sitting the average 2.5 meters away from a 44-inch set, a simple Quad HD (QHD) display already packs more detail than your eye can possibly distinguish. The scientists made it crystal clear: once your setup hits that threshold, any further increase in pixel count, like moving from 4K to an 8K model of the same size and distance, hits the law of diminishing returns because your eye simply can't detect the added detail. 

I commend them on their study of human eye "pixels-per-degree" perception resolution limit, but there are some caveats to the article title and their findings.

First of all, nobody recommends a 44-inch TV for 2.5 metres, I watch from the same distance and I think the minimum recommended 4k TV size for that distance was 55 inches.

Second, I'm not sure many QHD TVs are being offered, market mostly offers 4k or 1080p TVs, QHDs would be a small percentage.

And QHDs are already pretty noticable quality jump over 1080p, I've noticed on my gaming rig. So basically if you do the jump from 1080p to 4K, and watch 4k quality content, from the right distance - most people are absolutely gonna notice that quality difference.

For 8Ks I don't know, you probably do get into diminishing returns there unless you have a wall-sized TV or watch it from very close.

But yeah, clickbaity titled article, mostly.

[–] LoafedBurrito@lemmy.world 1 points 20 hours ago

Really depends on the size of the screen, the viewing distance, and your age/eye condition. For more people 720 or 1080 is just fine. With 4k, you will get some better detail on the fabric on clothes and environments, but not a huge difference.

8k is gonna be a huge waste and will fail.

[–] cheesorist@lemmy.world 7 points 1 day ago (4 children)

simply incorrect. in some circumstances sure 1080p is sufficient, but if the tv is big, close, or both. then 4k is a definite and noticeable improvement.

4k looks sharper as long as the actual content is real 4k, even from afar.

[–] leftascenter@tarte.nuage-libre.fr 5 points 1 day ago (1 children)

So completely correct as the point you are trying to make is the point the study focuses on (definition per viewed angle)

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[–] nyan@lemmy.cafe 3 points 1 day ago* (last edited 1 day 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.)

[–] Baggie@lemmy.zip 19 points 1 day ago (1 children)

Honestly after using the steam deck (800p) I'm starting to wonder if res matters that much. Like I can definitely see the difference, but it's not that big a deal? All I feel like I got out of my 4k monitor is lower frame rates.

[–] floquant@lemmy.dbzer0.com 10 points 1 day ago* (last edited 18 hours ago) (3 children)

Pixel density is what makes content appear sharp rather than raw resolution. 800p on a 7" screen is plenty, if you think about it a 50" 1080p TV is ~~almost 10x the size~~ more than 50x the size with a ~25% increase in (vertical) resolution

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[–] 4am@lemmy.zip 21 points 1 day ago (1 children)

Highly depends on screen size and viewing distance, but nothing reasonable for a normal home probably ever needs more than 8k for a high end setup, and 4K for most cases.

Contrast ratio/HDR and per-pixel backlighting type technology is where the real magic is happening.

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[–] Sauvandu60@lemmy.ml 13 points 1 day ago (2 children)

i suspect screen size would make the difference. you won't notice 4K or 8K on small screens.

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[–] Reygle@lemmy.world 0 points 16 hours ago

"No duh" -Most humans, since ever

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