protonscr

Performance regression on Medal of Honor 2010 and Operation Flashpoint: Red River with master realease commt 660d382

dxvkclosed windowsamd proprietary
doitsujin/dxvk#5709 · opened 2026-06-16 by cfelitti · updated 2026-06-17 · 6 comments · github
Ccfelitti 2026-06-16 github

Like i say, the performance regression is notorious, testing with the commit 660d382. i testing with the previous commit "version" and work flawlessly, i always remove the dxvk cache before testing to if i see stuttering, and im not having almost stuttering. but when i remove the previous cache for testing the new commit i see agressive stuttering.
In this regard, the new commit stutters more when compiling the shader and creating the cache than the previous version. If further testing is required, I'll make an apitrace and provide the logs.

System information

  • GPU: amd rx 5700 xt
  • Driver: amd adrenalin 26.6.1
  • OS version: WINDOWS 11 25h2 latest version
  • DXVK version: latest master
KK0bin maintainer 2026-06-16 github

Performance regressions on the AMD Windows driver are somewhat expected.

Meanwhile it should be faster on Linux and on every other driver.

Ddoitsujin maintainer 2026-06-16 github

Yes, this is known, and will not be addressed. All, and I really mean all other drivers that we've tested recent changes on have seen performance improvements if anything, AMD's Windows driver (at least on RDNA1/2) is the odd one out, but it also doesn't get any feature updates anymore (so it is already hitting slow paths) and any sort of current profiling tools also aren't supported on these GPUs anymore so I frankly just don't care.

Switch to Linux if you want a good D3D9 experience, otherwise stick to older DXVK or native DX9.

Ccfelitti 2026-06-16 github

Reallly amd fuck up his drivers on windows. i dont know why them no supports the compatibility for this project, when they lack optimal compatibility for old dx9 games or opengl on purpose.
ok I'll give linux a chance, cause I'm afficionate of playing old games.

DDigger1955 2026-06-17 github

@cfelitti

What CPU do you have?

P.S: 12 logical threads seems more reasonable, since most CPUs are at least 6/12, and should still solve address space issues.

Ccfelitti 2026-06-17 github

@Digger1955 I'm at the bottleneck limit, I guess... i7 6700, 16 GB of RAM, 1 TB SSD. disable all c states, disable meltdown and spectre, tweak a little volt, and i disable the p states on the gpu. Anyway the gpu amd driver sucks. Call of duty 2003 stutters, dx9 games stutters, and relative modern games works fine. Just there is not will from them correct this or support compatiblity on windows to work dxvk.
Anyway the latest worflow build that says something like fog, works again like it should.

DDigger1955 2026-06-17 github

@cfelitti

Before trying Linux (although it is inevitable at some point), try DXVK-GPLALL. DXVK-GPLALL 2.6.7-1 should work better in your specific situation.

Nothing extracted yet.