DirectX 12 games ran through Proton/Wine on Linux perform so much worse compared to Windows. This can’t be just the overhead from the translation as AMD GPUs perform just fine, but I think it’s due to a lack of proper driver optimizations. DXVK and VKD3D developers have acknowledged this and they c…

If you check the recent commits in descriptor-heap-rebase , Hans-Kristian is still landing a ton of work this is very much a “work in progress” and far from finished. Testing an experimental branch and expecting final results is always going to be disappointing. Also, keep in mind that the devs are …

Complete VK_EXT_descriptor_heap rebase Massive behemoth rewrite that is shippable. The full PR is here for testing purposes, but the actual landing will happen in half a million stages. Hidden behind VKD3D_CONFIG=descriptor_heap since there are still several NVIDIA bugs left to resolve before thi…

The main thing is that you believe it. Your words don’t match what I’m seeing in the source code.

I have just tested the new PR in at least three games. Same results as before. No performance difference whatsoever, which is incredibly confusing. Not even 1% lows improvement. I continue to have exactly 25% less framerate compared to Windows. Max 95% GPU usage. Total power consumption of the ca…

So if the code is already written, does that mean the problem is with the drivers? Sooo…

i tested it in the built-in benchmark of borderlands 3 on dx12 mode and the medium fps went from 66 to 69

In VR games the issue is much more noticeable. Performance is significantly worse. At the same time, GPU usage shows almost 100%, but power consumption is nearly 100W lower than it should be at real 100% load. [изображение]

If you check the recent commits in descriptor-heap-rebase , Hans-Kristian is still landing a ton of work this is very much a “work in progress” and far from finished. Testing an experimental branch and expecting final results is always going to be disappointing. Also, keep in mind that the devs are…

DirectX12 performance is terrible on Linux

Graphics / Linux Linux

morgwai666 April 17, 2026, 11:20pm 729

@stfroz, he just like posted a heads-up about an update and quoted the message: not his words and no claims about perf were made, in case you haven’t noticed…

Topic		Replies	Views
Please sort out the DX12 (vkd3d-proton) performance under Linux Linux	6	7817	August 30, 2024
BUG: Indiana Jones and the Great Circle only runs at ~40% of max TDP on RTX 4090 Linux	87	22568	January 17, 2025
VRAM Allocation Issues Linux	90	30822	April 10, 2026
Low performance in DOOM Eternal Linux	38	11215	June 23, 2021
Starfield does not launch on most NVIDIA GPUs on Linux, and not at all on Pascal GPUs Linux linux-driver	176	47744	December 28, 2023
Non-existent shared VRAM on NVIDIA Linux drivers Linux	147	35741	May 5, 2026
Extremely poor performance on a few selected applications Linux	0	2128	January 16, 2016
555 release feedback & discussion Linux	277	48153	February 3, 2025
575 release feedback & discussion Linux	505	47148	May 21, 2026
595 release feedback & discussion Linux	455	33995	May 26, 2026

DirectX12 performance is terrible on Linux

Related topics