While it looks like this has been released for some time, I updated my AMD Ryzen chipset drivers a couple of weeks ago and I was surprised to see a new power plan. It’s called “AMD Ryzen High Performance” power plan. You may need to update your chipset drivers at AMD’s web site to have access to this power plan. Note: updating your chipset drivers can lead to system instability and I take no responsibility for any issues!! I have an ASRock AM4 B550m motherboard.
After you install the chipset drivers, go into Control Panel->Power Options and then click on “Show Additional Plans”. You should then see this power plan.
I immediately noticed an improvement in the performance of my 5900x in MSFS with this power plan as it improved the smoothness by reducing/eliminating the majority of my stutters (ok, for at least today it did - tomorrow may be different ). While I still have some occasional micro-stutters, it is improved immensely.
I would read up on the ultimate performance power plan before using as one of the things it will do is disable cpu core parking. This, in turn, may also increase the heat generation by your cpu.
The plan I prefer is the AMD Ryzen High Performance plan as it has a less drastic effect on the processor than the ultimate plan (but still provides excellent results in MSFS).
It’s a balancing act. As I understand it, CPU parking uses the OS to idle CPU cores when they’re not being used, then activates them when needed. The CPU is much more efficient at this (which is what I suspect the Ryzen Performance Plan does.) Completely disabling parking will indeed increase temps. But if you have good cooling it shouldn’t be a problem, especially since the Ryzen processors actually work better at higher temps (to a degree.) And eliminating parking can greatly reduce micro-stutters, which, if your temps are OK, is never a bad thing.
A balancing act indeed. Apparently for the 7950x3d (and I’m guessing also applies to the 7900x3d), AMD says you need to run Windows in balanced power mode for core parking to work and give full CCD v-cache performance. I don’t think this applies to the 5800x3d and 7800x3d because they only have one CCD in use anyway.
As there are so many recent converts to AMD I should point out that on their site the same drop down menu for the chipset drivers is also where you can occasionally find processor updates. They are not combined.
It’s more complicated than simply “idling” the cores. Core parking, or C-states, will put cores in a deep sleep. This will lower the overall CPU package temperature. If you’re relying on the PBO algorithm, allowing core parking might improve single-core boosting performance from PBO.
I’d definitely run a few benchmarks before and after, particularly single-thread Cinebench. Enabling C-states on Raptor Lake generally increases single-thread performance due to more thermal headroom.
I would be careful with the AMD processor drivers as they are related to AMD’s StoreMI technology (accelerating data storage) and you should read the release notes before updating.
Btw, it looks like AMD updated their chipset drivers on 2/28/2023 for many of the AM4 and AM5 motherboards. This will include any updates to the “AMD Ryzen High Performance” power plan mentioned in this thread. If you are getting the newer 7000 series x3D processors there will be many must have updates to take full advantage of all of the new capabilities.
You can use the link below and select chipset then answer the remaining questions regarding your set up. It will then auto detect your specific system hardware and present you with a menu for you to select those items needing updates.
The chipsets are by motherboard type, not processor, however, there are specific features for the x3D processors contained within the chipset drivers.
I took a quick look at multiple AM4 and AM5 based motherboard types and mostly all of them indicated there were updates available. If you use the link above I provided you can sequence through and on the final menu decline to install any updates if you so desire. It will not offer any updates after the auto detect process if your drivers are up to date.
I have an ASRock AM4 B550m motherboard.
). While I still have some occasional micro-stutters, it is improved immensely.