4K resolution extremely pixelated when downscaled

Hello!

I recently got a 4K monitor and it works pretty well with most games. Even downscaled to 1440 px it looks great / sharp for most of my games until I can get a graphic card than can handle 4K better coming spring.

Unfortunately, the same can't be said for Warcraft.

For some reason, everything becomes extremely blurry and pixelated as soon as I turn down the resolution. Especially the fonts become an unreadable mess. Of course I'm fully aware that there will be some quality loss, but I didn't expect it to be so glaring after having great results in other games.

I dual-screened with my old 1080px monitor to see the difference and it's very much noticeable and kind of gives you a headache after a while. I can definitely 4K Warcraft in the open world, but there's no way I can in raids (yet).

Is this an issue with the game's graphics? Am I missing a setting here?
11/11/2018 13:12Posted by Kerreth
I can definitely 4K Warcraft in the open world, but there's no way I can in raids (yet).


Raids are CPU-limited.. if it runs fine in open world zones, your GPU should be enough to handle 4K in WoW.

Why didn't you post your specs?
Also what are your settings in WoW?
Did you turn down _resolution_ or _resolution scale_ ?

If you use the scale UI elements, text etc. should still be shown using your native resolution (so no pixelation). Additionally if you use scaling check the Advanced graphics options for "Resample quality", by default it is "none" while I believe "bicubic" is best but also slowest.
12/11/2018 17:25Posted by Aimjin
Raids are CPU-limited.. if it runs fine in open world zones, your GPU should be enough to handle 4K in WoW.
Why didn't you post your specs?
Also what are your settings in WoW?

Heya, you're right, I should've posted my set-up along with.

GPU - Geforce GTX 1070
CPU - Intel (R) Core (TM) i7-8700K CPU @ 3.70 GHz
RAM - 16,0 GB

And for completion's sake, the monitor is a BenQ EL2870U 28 inches. The GPU is definitely the bottleneck atm since it's quite outdated at this point and does gobble up quite a good bit of FPS (practically more than halves my FPS at 4K settings which puts it under 40 FPS at times, especially in busy areas like the cities / raids - even downscaled to 1440px FPS in raids goes pretty low).

As for my settings, most of them are high / ultra. View Distance 7, Enviroment Detail 8, Ground Clutter 8. I do have Anti Aliasing at MSAA 2x on lower resolutions too, but remove it on 4K.

12/11/2018 17:39Posted by Grelier
Did you turn down _resolution_ or _resolution scale_ ?

If you use the scale UI elements, text etc. should still be shown using your native resolution (so no pixelation). Additionally if you use scaling check the Advanced graphics options for "Resample quality", by default it is "none" while I believe "bicubic" is best but also slowest.

Resolution is locked into 4K since it's fullscreen. I'm using the resolution scale slider to turn it down which is the thing that causes pixelation. I did try changing the resample quality to bicubic but it made everything look really weird. Soft, for lack of a better word? As if all the crispness was gone and someone put the image through a gaussian blur. Didn't really improve the fonts either which I thought was odd.
Are you calling a 1070 quite outdated?

Really?
1 Like
13/11/2018 10:29Posted by ValkiĆ”
Are you calling a 1070 quite outdated?

Really?


I feel bad with my 970 :D

which puts it under 40 FPS at times, especially in busy areas like the cities / raids - even downscaled to 1440px FPS in raids goes pretty low).


Check the GPU usage, if it's not at 99% (GPU-Z e.g.) than it's a CPU limit.
And yes, in WoW even a 8700K is limiting your FPS in raids... singlethreading all the way baby...
The DX12 multithread improvement will help a bit in the questing areas etc. but i doubt it will change much or anything at all in raid and stress situations where the engine is bottlenecking.
13/11/2018 10:29Posted by ValkiĆ”
Are you calling a 1070 quite outdated?
Really?

For what I want to do, and especially for playing at 4K, yes. :P It's starting not to make ends meet for new game releases, too, even downscaled to 1440p.
13/11/2018 18:33Posted by Aimjin
Check the GPU usage, if it's not at 99% (GPU-Z e.g.) than it's a CPU limit.
And yes, in WoW even a 8700K is limiting your FPS in raids... singlethreading all the way baby...
The DX12 multithread improvement will help a bit in the questing areas etc. but i doubt it will change much or anything at all in raid and stress situations where the engine is bottlenecking.

In that vein, GPU usage is really high. Same with playing other games beyond WoW (for example, last game I got for PC was Assassin's Creed Odyssey and it maxes out at 99 % usage and doesn't manage more than 20-25 FPS at 4K - unplayable). Same with WoW, though FPS are anywhere from 40-80 FPS in the open world with that. So yes, it's definitely a GPU bottleneck. CPU goes up to around 15-20 % usage but we all know CPU and WoW is a bit iffy.
13/11/2018 19:52Posted by Kerreth
So yes, it's definitely a GPU bottleneck. CPU goes up to around 15-20 % usage but we all know CPU and WoW is a bit iffy.


A 1070 is definately not bottlenecking in 1440P in WoW ;)

Do this, look for a spot where your FPS is really low, turn down the resolution scale ingame. How much does your framerate go up?
14/11/2018 15:11Posted by Aimjin
A 1070 is definately not bottlenecking in 1440P in WoW ;)

Do this, look for a spot where your FPS is really low, turn down the resolution scale ingame. How much does your framerate go up?

You're missing the point of this thread. I never said that a GTX 1070 massively bottlenecks WoW at 1440P, only that it reduces performance, which is to be expected. I was talking about it not being enough at 4K and for other games at this resolution and it's definitely a bottleneck across the board for that. You need at the very least a 1080ti for that, or rather two 1080ti with SLI, to get acceptable results as a whole.

But that wasn't the issue I made this thread for to begin with. I was asking about resolution pixelization, not FPS issues.

Either way, it's irrelevant now because I returned the monitor. I liked the sharpness & HDR, but it had too many drawbacks for me to stick with it, including the blurry downscaling in WoW. Perhaps in a couple years when I exchange my monitor again I'll give it another shot since hardware will have caught up more with it.