27-inch 4K monitors at 2560x1440 HiDPI - is the text fuzziness noticeable?

[pubmsu]

Hi,

Many people reported that text is a little fuzzy in this configuration for most 4K monitors. Is this still the case for latest IPS 4K monitors like LG 27UK850? Or is the text perceived as sharp as a 5K monitor at its native retina 2560x1440 HiDPI resolution at viewing distance of 2 feet or more?

Thanks!

 

[pubmsu]

Anyone?

 

[Fishrrman]

If you want a resolution of 2560x1440, your best bet is to buy a 1440p 32" display with 2560x1440 as its native resolution.

This will yield a dot pitch of .2767 -- not too small that you can't read text displayed at normal font sizes, not so large that the edges will be blurry.

It may not be as "tack sharp" as a retina display running in HiDPI mode, but I sense it will look as good as (or better than) a 27" 4k display running 2560x1440 in "scaled" mode...

For a good way to calculate pixel sizes, see this page:
https://www.sven.de/dpi/

 

[Fozziebear40]

Hi

I've got an LG 27UD68P 4K monitor. When I run my MacBook Air through it, it supports HiDPI so it's a 4K signal at 60hz with the Air scaling to 2560 x 1440 and it looks very sharp.

Unfortunately I want to use it with my 2014 Mac Mini that doesn't do HiDPI so I am sending a 2560 x 1440 signal to it and it does look a little fuzzy. I'm 56 with varifocal glasses so it doesn't look too bad

I run it side by side to a 2011 iMac which is native 2560 x 1440 and it is comparable.

 

[pubmsu]

If you want a resolution of 2560x1440, your best bet is to buy a 1440p 32" display with 2560x1440 as its native resolution.

This will yield a dot pitch of .2767 -- not too small that you can't read text displayed at normal font sizes, not so large that the edges will be blurry.

It may not be as "tack sharp" as a retina display running in HiDPI mode, but I sense it will look as good as (or better than) a 27" 4k display running 2560x1440 in "scaled" mode...

For a good way to calculate pixel sizes, see this page:
https://www.sven.de/dpi/

I need the HiDPI 2560x1440 though. I was mainly wondering how fuzzy it will be compared to 5K 2560x1440 retina.

 

[Fozziebear40]

If you are running in HiDPI it won't be fuzzy. What Mac are you plugging in?

 

[pubmsu]

If you are running in HiDPI it won't be fuzzy. What Mac are you plugging in?

Planning to get 13-inch 2018 for the setup. Downsizing from 2016 15-inch.

 

[Fishrrman]

A "4k" display scaled down to 2560x1440 is not going to be running in "HiDPI mode"...

Isn't Apple's 5k iMac (running in true HiDPI) giving a "working pixel count" of 2560x1440 ...? (I could be wrong).

 

[Fozziebear40]

A "4k" display scaled down to 2560x1440 is not going to be running in "HiDPI mode"...

I have a 4K display, running at 4K, the option is to scale, appears as 2560x1440 so it IS in HiDPI and according to SwitchResX it is.

 

[pubmsu]

A "4k" display scaled down to 2560x1440 is not going to be running in "HiDPI mode"...

Isn't Apple's 5k iMac (running in true HiDPI) giving a "working pixel count" of 2560x1440 ...? (I could be wrong).

2560x1440 in 4K will be HiDPI. It won't be native "retina", as native retina of 4K is 1920x1080. Native retina of 5K is 2560x1440, which is 5K's default and it is HiDPI retina.