Question Quality differences between resolutions on same size monitor ?

[Maramsp]

Heya.

Since im buying a new monitor in a month from now i was wondering about something.

I currently do have an 27" 1080p va monitor with hdr400 and unofficial g-sync.
Im switching to a 27" 1440p QD-Oled monitor with hdr400 true black and unofficial g-sync.

I know the 1440p has more PPI, but i was wondering: If i set the resolution of my games back from 1440p to 1080p on the new monitor, do they look as good then as that they are looking now on my 1080p screen?

I mean, my logic would say cause they're both 27" screens, that the difference should be minimal if gaming on 1080p on that new screen, just because of the same sizes of both monitors.

Am i correct in this regard?

Thanks in advance!

 

[BFG-9000]

Scaling looks fine if you have an analog display such as a CRT. On a fixed-pixel display such as LCD, plasma or OLED it can look absolutely terrible. It's not that it's blurry, but scaling artifacts especially on text can have random parts thicker than others

The exception is if it's a perfect doubling--so 1080p looks perfectly fine on a 4k display. But 1080p goes into 1440p 1.33x so 1/3 of those lines will have thick areas.

 

[Maramsp]

Scaling looks fine if you have an analog display such as a CRT. On a fixed-pixel display such as LCD, plasma or OLED it can look absolutely terrible. It's not that it's blurry, but scaling artifacts especially on text can have random parts thicker than others

The exception is if it's a perfect doubling--so 1080p looks perfectly fine on a 4k display. But 1080p goes into 1440p 1.33x so 1/3 of those lines will have thick areas.

Thank you for this!
Then if my fps are getting a bit worse, i should then enable more dlss or frame gen i think.
But i should be set for 1440p with a 4070ti super not?

 

[bill001g]

You really want to run any video screen at its native resolution. The physical screen size is only 1 factor the actual number of pixels on the screen is also fixed. The monitor will accept a video signal at different resolution but then the input signal does not always map 1 to 1 with the physical pixels in the screen. You now get strange cases where some pixels are displayed on multiple physical pixels and others only use 1. As illustrated above you get artifacts you can see.

The other option would be to somehow leave black bars on the side and top. You in effect reduce the physical number of pixels so they map 1 to 1. I have not seen a monitor do this but sometime you see it on games/applications that can run in windowed mode.

Most people never understand this problem until they see it with their eyes. Even then they don't know why the screen does not look at good until someone points out the artifacting.

The problem seems to be the cost of a monitor that can run high resolution drops in price while the video cards that can support these higher resolutions keep going up in price. Many people are buying the 4k Oled displays and then running them at 1440 because their video card can only run games at that resolution.

For a more standard application you can run the display at its native resolution since you do not need high refresh rates. In a game you would want to try to use DLSS if the game supports it. The video card will then attempt to scale the image rather than the monitor. The problem still exists but the video card has much more processing power to do this unlike some cpu in a monitor.