News for hackers. Stuff that matters.
Re:MacBook Air M4 by pishpash on Wednesday March 05, 2025 @01:10PM (#43270128)
Just tried ProMotion vs. 60Hz on MBP, no/very little difference I can see. Sure it's just me but for me all the claims here are way exaggerated/psychological, almost like audiophiles being able to "hear" stuff that doesn't exist in a blind test.
Re:MacBook Air M4 by klausa on Wednesday March 05, 2025 @01:36PM (#43270448)
As one of the upthread comments mentioned, this is something that probably varies with sensitivity between people.

But I am quite confident I'd be able to tell 60/120hz with a 100% accuracy within 5s of being able to interact with the device.

Probably under a second on an iPhone, ~2s on a Mac with a built-in display and slightly longer on iPads and bigger displays. Add ~2 extra second if I'm using a mouse instead of a trackpad.

It is _that_ noticeable to me.

Re:MacBook Air M4 by nicoburns on Wednesday March 05, 2025 @06:14PM (#43274090)
I'm generally ok with 60Hz (the difference isn't that significant to me). But I can definitely see the difference in a head-to-head comparison with fast moving content. The easiest way to see it for me was to move the cursor around quickly. With 60Hz there are much more visible "jumps" between positions. With 120Hz it animates much more smoothly.
Re:MacBook Air M4 by mort96 on Wednesday March 05, 2025 @06:49PM (#43274403)
It's baffling to me that some people claim to not see the difference. It's literally light and day to me. It's like someone looking at a low DPI screen and a high DPI screen and not being able to tell the difference.
Re:MacBook Air M4 by jofzar on Wednesday March 05, 2025 @08:12PM (#43274985)
Yeah I move a window and it's immediately noticable. I'm jealous of people who can't tell.
Re:MacBook Air M4 by lukevp on Wednesday March 05, 2025 @11:44PM (#43276506)
Same. The suggestion that it’s like audiophiles totally missed the mark, because lots of audiophile claims do not stand up to double blind tests. I can guarantee that 60 vs 120 hz blind tests would be insanely easy to pass if there was window movement or scrolling or basically anything but static frames.
Re:MacBook Air M4 by pishpash on Tuesday March 11, 2025 @05:15PM (#43337078)
Are you sure the underlying application and the OS are even rendering 120Hz all the time? The panel being able to was enough to convince some people they're seeing "smooth scrolling" when it was actually 60Hz saving battery. That's the analogy to audiophiles.

https://www.reddit.com/r/iphone/comments/10skjxm/promotion_d...

Re:MacBook Air M4 by Toutouxc on Thursday March 06, 2025 @01:22AM (#43277002)
In this case it really is just you. I can tell a high-refresh-rate display from across the room. I can tell if someone’s iPhone is a Pro even if the person is sitting five meters away from me on a moving bus.

On the other hand, my MacBook has a 120 Hz display and both my iPad Mini and iPhone Mini are 60 Hz, and even though the difference is night and day, I don’t really MIND using them. It’s just not that cool.