Problem and solution confirmed.
SPECS:
- Ryzen 9 5900X
- ASUS RoG Strix X570-E Gaming
- 3080 FE
Got exactly 66 fps in V's apartment in a CPU benchmark (graphics set to 720p low), which increased to 70 fps after applying the CPUPool / GPUPool fix. The SMT fix had - as expected with 12 physical cores - no measurable effect whatsoever besides distributing the load more evenly over all logical cores. And yes, I have AI Suite installed and used the DIP5 optimization before.
After doing the recommended "in-place upgrade" of Windows 10 (which basically is a reinstall of the system files, but leaves user files and the registry untouched, so you don't have to set up anything after doing it), the fps in my test scenario increased to 154 with the SMT patch and even 184 without. I've decided to keep the SMT patch though, as it now actually does remove most remaining stuttering when navigating the city quickly.
I still can't get stable 60 fps in 4k Ultra with Raytracing and DLSS Performance Mode in some especially demanding scenes like the Afterlife, but now it's clearly GPU limited; RTSS finally reports a GPU load of 99%, just as it should. \o/ Since I don't want to sacrifice the next gen look, I've set my output to 50 Hz and now I finally (!) have an almost perfectly fluid experience (and as a European watching PAL television, I'm used to 50 Hz anyway
).
Since my PC is connected to an OLED TV, I've tried to use the TV's motion interpolation feature (which worked great on 30 fps PS4 titles) to further smooth out the presentation, but in Cyberpunk the additional latency feels very bad, probably because it's a 1st person game and needs more direct feedback.