1080p on a 1440p Monitor?

HappyHambo

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Dec 3, 2014
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I'm planning on buying a Dell U2515H 1440p monitor for gaming on my new PC. I mostly play early access games and other random games (Usually not too graphics intensive like Minecraft, Rust and maybe a bit of Skyrim) and I was wondering if new, early access games support 1440p. If they would only be able to run at 1080p would I be able to play it on my 1440p monitor or would it look weird. I'm really a bit of a newbie at PC's and Displays so any responses are GREATLY appreciated. :)

Thanks :vendredi:
 
Solution
Because 720p (1280x720) is exactly 1/4 the res of 1440p (2560x1440) & is in essence a native resolution on a 1440p screen.
So in theory its not 1:1 pixel mapping but 4:4 if you see what I mean ??
It still gives a perfect square on a 1440p display & it should theoretically scale perfectly (its not actually scaling but creating 1 pixel out of 4 ) - however I'm not arguing with chenw as he has more experience of it than me.

1080p is much more complicated & requires more processing & actual scaling as it is non-dividable without creating fractions.

1920x1080 = 2073600 pixels
2560x1440 = 3686400 pixels

3686400÷2073600 = 1.777777 recurring

chenw

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YMMV. But personally I much prefer sharp over blurry, so I rather turn down details than to play games at 1080p on an 1440p screen.

This is one of my main reasons (this along with DSR existing) that I prefer lower resolution screen than a higher resolution one for gaming. The lowest resolution where one can obtain a sharp image is lower with a low resolution screen, so there is more versatility in choosing the best IQ/performance for games.
 
Yes it will be noticeably worse than 1080 on 1080. You're losing fine detail and will introduce a slight blur. If you think you'll be playing in 1080 more than 1440 then get a 1080 display. 1:1 pixel mapping is the key. You can't rely on tests, because you would need a identical spec 720 and 1080 panel, this won't happen- ever. Simply dropping resolution to maintain a higher framerate is not a very good idea. The only way this would work is if you buy a k4 TV and let it upscale 1080, that will work. A lot of TV's do this really well, and will look noticeably sharper than 1080, provided you take advantage of the extra pixels by sitting closer to the screen, otherwise- no difference.
 
720p on a 1440p monitor still gives 1:1 pixel mapping ,1080p will require scaling.
How good it looks will ultimately depend on the quality of your monitor.I think you'll be fine on the dell ,its a good panel.
Its the equivalent of running 720p on a 1080p monitor - the desktop & text will look crap but games tend to look absolutely fine on a scaled non-native resolution.
 

chenw

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In reality 720 on 1440p sometimes does not pixel map properly. For movies the media players usually map quite well, however for full screen games, it introduces blurring when in theory it should not. I tried running games on 720p as I wanted to see if it is possible to remove the blurring induced as a result of non-even scaling from 1080p, however it still looks blurry, in addition to looking blocky.
 

gamingwoop

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Apr 29, 2015
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Sorry to butt in, but how would 720p have 1:1 pixel mapping onto 1440p? How does it work, and why isnt it the same for 1080p? Im not questioning anyone's knowledge I'm just curious :)
 
Because 720p (1280x720) is exactly 1/4 the res of 1440p (2560x1440) & is in essence a native resolution on a 1440p screen.
So in theory its not 1:1 pixel mapping but 4:4 if you see what I mean ??
It still gives a perfect square on a 1440p display & it should theoretically scale perfectly (its not actually scaling but creating 1 pixel out of 4 ) - however I'm not arguing with chenw as he has more experience of it than me.

1080p is much more complicated & requires more processing & actual scaling as it is non-dividable without creating fractions.

1920x1080 = 2073600 pixels
2560x1440 = 3686400 pixels

3686400÷2073600 = 1.777777 recurring

 
Solution

gamingwoop

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Apr 29, 2015
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I see. Thanks for such an in-depth answer! :)