this post was submitted on 27 Oct 2025
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Study Boldly Claims 4K And 8K TVs Aren't Much Better Than HD To Your Eyes, But Is It True? (hothardware.com)
submitted 1 day ago* (last edited 11 hours ago) by artifex@piefed.social to c/technology@lemmy.world
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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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[–] 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.