NVIDIA DSR with 1080p Panel ( Upscalling / Downsampling )

[Waqas409]

Hi, 
I saw few reddit posts and some forums where they talk about NVIDIA DSR, basically if you have a powerful GPU that can push games easily 1440p or 4k but the screen you are using is 1080p panel, it can be used in this scenario. 
So, i was thinking if i use this option on my 1080p panel, as 1440p panels or 4k panels are very expensive.
Right now i have 21inch 1080p acer LCD panel, the option i have is i can buy "DELL P2411H 24inch" for $30, it also has an 1080p native resolution but has more area in terms of screen size ( 24 inch ).

What would be the best scenario in my Case?
Graphics card i'm using is GTX 1070Ti.

Thanks
 

[gbergeron]

13 minutes ago, Waqas409 said:

Hi, 
I saw few reddit posts and some forums where they talk about NVIDIA DSR, basically if you have a powerful GPU that can push games easily 1440p or 4k but the screen you are using is 1080p panel, it can be used in this scenario. 
So, i was thinking if i use this option on my 1080p panel, as 1440p panels or 4k panels are very expensive.
Right now i have 21inch 1080p acer LCD panel, the option i have is i can buy "DELL P2411H 24inch" for $30, it also has an 1080p native resolution but has more area in terms of screen size ( 24 inch ).

What would be the best scenario in my Case?
Graphics card i'm using is GTX 1070Ti.

Thanks
 

Just use DSR and enjoy nicer details...

[Waqas409]

20 hours ago, gbergeron said:

Just use DSR and enjoy nicer details...

using DSR 4k on 1080p panel, OMG its amazing !!!! 
Image quality is very good

[gbergeron]

3 hours ago, Waqas409 said:

using DSR 4k on 1080p panel, OMG its amazing !!!! 
Image quality is very good

Yes it is better. Not as good as a Real 4K monitor but still is better than original 1080p.

 

Enjoy !

[Waqas409]

1 hour ago, gbergeron said:

Yes it is better. Not as good as a Real 4K monitor but still is better than original 1080p.

 

Enjoy !

But performance wise its utilizing the same amount of computer resources like if there were a real 4K monitor... right? 

[gbergeron]

1 hour ago, Waqas409 said:

But performance wise its utilizing the same amount of computer resources like if there were a real 4K monitor... right? 

Yes, your GPU render the images in 4K then upscale to 1080p so same performance yes

[Waqas409]

Just now, gbergeron said:

Yes, your GPU render the images in 4K then upscale to 1080p so same performance yes

Great to know that ! !

[gbergeron]

Just now, Waqas409 said:

Great to know that ! !

I used DSR with my 1080p moiniutor, used to always go for 1440p DSR

 

Then bought this 1440p monitor recently, and yes, same performance  

[SolarNova]

I use 4k DSR in some games.

 

Though i primarily use it for when i run a game using custom 21:9 resolution on my 16:9 screen. (takes some work but u can use both DSR and a custom resolution at the same time, even though Nvidia doesnt allow it via the NVCP) . A custom resolution of 1920 x 820 produces a letterbox 21:9 image, but obviosly the rendering resolution is low, so 4x DSR on it makes it 3840 x 1640, which looks great.

 

The biggest visual difference between a 4k Monitor and 1080p monitor , is actualy due to the rendering resolution used when comparing. Most people simply compar a 1080p monitor at 1080p to a 4k  monitor at 4k. However...

If you got 4 monitors, 2 x 4k and 2 x 1080p, and ran them at:

1080p at 1080p native

4k at 1080p

1080p at 4k DSR

4k at 4K native

 

The result from best looking to worst would be.

4k at 4k native

1080p at 4k DSR

1080p at 1080p native

4k at 1080p (depending on downscaling quality)

 

The difference between 4k at 4k and 1080p at 4k DSR is MUCH closer than you would expect and a significant improvment from 1080p at 1080p native.

 

Word of warning, dont use any other DSR mode other than 4x. Anything else results in horrible interpolation.

[Waqas409]

14 hours ago, SolarNova said:

I use 4k DSR in some games.

 

Though i primarily use it for when i run a game using custom 21:9 resolution on my 16:9 screen. (takes some work but u can use both DSR and a custom resolution at the same time, even though Nvidia doesnt allow it via the NVCP) . A custom resolution of 1920 x 820 produces a letterbox 21:9 image, but obviosly the rendering resolution is low, so 4x DSR on it makes it 3840 x 1640, which looks great.

 

The biggest visual difference between a 4k Monitor and 1080p monitor , is actualy due to the rendering resolution used when comparing. Most people simply compar a 1080p monitor at 1080p to a 4k  monitor at 4k. However...

If you got 4 monitors, 2 x 4k and 2 x 1080p, and ran them at:

1080p at 1080p native

4k at 1080p

1080p at 4k DSR

4k at 4K native

 

The result from best looking to worst would be.

4k at 4k native

1080p at 4k DSR

1080p at 1080p native

4k at 1080p (depending on downscaling quality)

 

The difference between 4k at 4k and 1080p at 4k DSR is MUCH closer than you would expect and a significant improvment from 1080p at 1080p native.

 

Word of warning, dont use any other DSR mode other than 4x. Anything else results in horrible interpolation.

There was no 1440 option in nvidia Geforce Experience DSR only there was for 4k.
So what i did was in nvidia control > change resolution > Custom resolution > 2560x1440p
Now i ran every game on 1440 ez pz
 

[SolarNova]

7 hours ago, Waqas409 said:

There was no 1440 option in nvidia Geforce Experience DSR only there was for 4k.
So what i did was in nvidia control > change resolution > Custom resolution > 2560x1440p
Now i ran every game on 1440 ez pz
  

 1440p DSR is the 1.78x multiplier.

 

But again i dont sugest u run DSR or a custom resolution of anything other than 4x (4k). Interpolation is more accurate when dealing with a whole ,even, multiplier of pixels.

 

So for 1080p, 4 (2 pixels by 2 pixels) in to 1 is easy(4k/2160p) vs trying to do 1.78 (1.334 pixels by 1.334 pixels) into 1 (1440p).

The issue with 1440p on a 1080p monitor will arise mostly with text.

[Waqas409]

42 minutes ago, SolarNova said:

 1440p DSR is the 1.78x multiplier.

 

But again i dont sugest u run DSR or a custom resolution of anything other than 4x (4k). Interpolation is more accurate when dealing with a whole ,even, multiplier of pixels.

 

So for 1080p, 4 (2 pixels by 2 pixels) in to 1 is easy(4k/2160p) vs trying to do 1.78 (1.334 pixels by 1.334 pixels) into 1 (1440p).

The issue with 1440p on a 1080p monitor will arise mostly with text.

i only do 1440p when i play games, other than that i switch back to 1080p.