downsampling compared to resolution scale

NeonKatz
Junior Member

01-17-2025, 02:18 AM

I tried various methods to enhance my 1080p monitor in games, discovering AMD's Virtual Super Resolution (VSR) and Nvidia's DSR, both involving downsampling. After adjusting my resolution to 4K and then back to 1080p with the scale slider at 200%, the improvement became noticeable. However, I'm still unsure why downsampling doesn't produce similar results.

NeonKatz

01-17-2025, 02:18 AM #1

RommyLOL
Junior Member

01-17-2025, 04:16 AM

This behavior can be observed in various games, possibly linked to the engine's resolution reduction calculations. Which GPU is involved?

RommyLOL

01-17-2025, 04:16 AM #2

This behavior can be observed in various games, possibly linked to the engine's resolution reduction calculations. Which GPU is involved?

Reepety
Senior Member

374

01-17-2025, 10:30 AM

I checked Crysis 3 and Battlefront 2 on an RX 580 with 8GB RAM. Did you observe any changes?

Reepety

01-17-2025, 10:30 AM #3

I checked Crysis 3 and Battlefront 2 on an RX 580 with 8GB RAM. Did you observe any changes?

RepoRizer
Posting Freak

872

01-21-2025, 07:15 AM

It relies on the specific algorithm applied for downsampling the image. DSR employs a Gaussian filter to manage resolutions that are unusual multiples of the original size. Certain games might utilize a bicubic filter instead.

RepoRizer

01-21-2025, 07:15 AM #4

gamerbro245
Member

01-22-2025, 10:24 PM

I ran a quick test with my Radeon VII and noticed the same issue. It seems the Gaussian filter is reducing quality, making it appear less detailed or lower quality.

gamerbro245

01-22-2025, 10:24 PM #5

I ran a quick test with my Radeon VII and noticed the same issue. It seems the Gaussian filter is reducing quality, making it appear less detailed or lower quality.

ViNxNewBrand
Member

01-30-2025, 09:42 PM

I understand you want to verify if the downsampling issue is related to your monitor.

ViNxNewBrand

01-30-2025, 09:42 PM #6

I understand you want to verify if the downsampling issue is related to your monitor.

Sufie
Member

01-30-2025, 11:54 PM

I did test it too! The same behavior also occurs with those games. Your monitor isn't responsible for that either. It delivers 1080p and shows it. The way this 1080p is generated doesn't matter to it!

Sufie

01-30-2025, 11:54 PM #7

Skyguy_
Member

228

01-31-2025, 05:40 AM

Have you adjusted the DSR Smoothness setting? The standard 33% value might be overly gentle, causing the image to appear less sharp than intended.

Skyguy_

01-31-2025, 05:40 AM #8

Have you adjusted the DSR Smoothness setting? The standard 33% value might be overly gentle, causing the image to appear less sharp than intended.

irwyn86
Junior Member

01-31-2025, 12:31 PM

Neither increasing the scale resolution beyond 100 will improve your frame rates. If you use DSR, switch to 4k and play at 4k. I’m here to let you know you can’t. Unless you have a 2080Ti with around 60fps, compared to triple-digit FPS in AAA games and lower resolution, DSR won’t work well on your desktop. The fonts and other elements are distorted. Just stick to 1080p or higher, and avoid scaling and similar issues.

irwyn86

01-31-2025, 12:31 PM #9