protonscr

WoW performance worse with lower render scale vs lower resolution

dxvkclosed
doitsujin/dxvk#3811 · opened 2024-01-21 by Espionage724 · updated 2026-06-17 · 5 comments · github
EEspionage724 2024-01-21 github

My main resolution is 1920x1080. If I set the in-game rendering scale option to 1279x719, performance improves a tiny bit. If I set the in-game resolution to 1280x720 and the rendering scale to 100% of that, performance improves massively.

I didn't test 720p on Windows, but 1080p 100% ran good that I didn't need to lower the render scale.

Software information

  • WoW Classic (install notes)
  • DirectX 11 Legacy, Triple Buffering unchecked, lowest Graphics quality (high textures), Windowed Fullscreen
  • Fedora Workstation 39 (GNOME on Wayland; WoW from Xorg looks choppy despite high FPS)

System information

Ddoitsujin maintainer 2024-01-23 github

Don't think this is entirely unexpected? Render scale options will generally render the main scene at a lower resolution but the UI (and potentially some post-processing) will still run at 1080p, as opposed to running the entire game at 720p.

Will only consider this a bug worth looking into if DXVK behaviour is substantially different from Windows on AMD/NV HW (i.e. drivers that are generally known to not have weird performance issues on Linux).

SSuperSamus 2024-01-23 github

(Sorry if this is a stupid question)
Could it be possible that in the Linux case, OP is being bottlenecked by VRAM?

Ddoitsujin maintainer 2024-01-23 github

Well we're talking old-ish integrated graphics here, so I think we can rule that out.

Reason why I don't really care too much is because these don't have the greatest track record in terms of DXVK performance.

EEspionage724 2024-01-23 github

(Sorry if this is a stupid question) Could it be possible that in the Linux case, OP is being bottlenecked by VRAM?

With lspci it seems my GPU has 256MB by default, but I can raise that to 2G with some EFI var I think related to Aperture size. I'm not entirely sure how VRAM allocation works on pre-Xe Intel. I didn't consider this and will try it out though.

Mmirh 2024-10-28 github

It would be nice if you could recheck on windows, where render scale is often reported to be bitchy too
https://us.forums.blizzard.com/en/wow/t/is-render-scale-broke/1816444

Nothing extracted yet.