I just upgraded my 7900x3d to a 9950x3d a couple of weeks ago and have been tweaking & testing. I wanted to know if I need to further tweak the 9950x3d cores/CCD’s (i.e. Process Lasso) at 4k resolution to get optimal performance with the sim. I set up a short test with SU2 and the FA/18 Hornet sitting on the runway at Kennedy, taking off straight out leveling off at 4000ft, cut throttle to 50%, fly over Manhattan, bank left and land at Newark. The test encompassed everything from sitting on the runway at Kennedy to coming to a full stop on the runway at Newark.
I first used the Win 11 at 4k using the Balanced Power Plan to run the sim exclusively off the v-cache cores with the other cores parked:
I then merely changed to the Win 11 Ultimate Power Plan which loaded up the sim to run on the v-cache cores but did not park any cores and allowed the sim to use all 16 cores/32 threads (which it did):
So as you can see, both charts show great results and did not uncover any issues with the two CCD’s. The charts for the frame times also mirrored each other with great results. I repeated the tests with SU3 Beta v1.5.3.0 with the same results so I am concluding that no cpu CCD tweaking is necessary on my 9950x3d with MSFS 2024 (MSFS 2020 may be another story). Process Lasso may squeak out a few more fps but with the smooth fps already being achieved I don’t think it would be worth it. You can click on my gamer pic for my PC specs.