Hello everyone,
I recently switched from the 5800X3D to the 9900X3D, and in my opinion, the core utilization was better with the 5800X3D.
In the attached screenshot, I calculate the lattice body in 0.25 mm and the process only uses 2 cores instead of 6 (without 3D cache).
Are there other AMD users who are not using all cores?
I have a 4070 GPU, which should be sufficient.
Thanks in advance.
Translated from German*
Hi @Mrvn
thatās really slow , plus you open another window on top what even more slowed up the processor , Revo Metro need to be maximize for full processing power .
My CPU i9 14Gen @ 5GGz runs around 75% while processing and the meshing is the slowest one.
RM need better optimization for AMD based CPUs
Hi @Mrvn. I have a Ryzen 9 5900x 12 cores. With latest updates cpu utilization went up from using 2 to 4 logical cores (out of 24) and from about 12% to 20%. Still lot of room from improvement but already better. I also maximize utilization for RevoMetro in taskmanger to ārealtimeā.
Looks like they are not yet there to full take the potential of the processors . It getting better but it could already be better after so long period of time. Or at least let the GPU handle it too. 
On a desktop PC with an Intel i9-10900 processor, all cores were utilized during the Fusion process. I havenāt tried it on a laptop with a Ryzen 9-8940HX yet.
The CPU on my PC and laptop works as expected i9 10th Gen and i9 14th Gen.
But I am suspecting the software is not yet optimized for the AMD to utilize all cores , it is already better than before but not yet optimal.
My Ryzen 9 7950X also only uses only 2 of the 16 cores.
Hi, Cath!
Do you mind ask the tech team:
and
To be honest, I actually am very interested in reason(s) why Intel CPUs seem to perform so much better than AMD for fusion and other processing steps, too. I do get it for AMD vs NVIDIA GPUs (CUDA) but less for CPUs and I am sure there must be a reason for it.
At the moment it is bit a bummer having upgraded the CPUs just for MetroX and the processing seems to take much less time on Intel systems 
But hey, it works ,my projects arenāt as big and I can live with the processing times - for nowš
Thanks in advance!
Hi Ivan ,
Ok no problem I will ask .
I second these questions. I use laptops for my scanning and in that context AMD processors are better then Intel for multi core operations. The AMD processors run all cores at full speed while Intel processors now have efficiency cores that prioritize power saving over performance. My Ryzen 7 7735HS (8C/16T) out-performs a Intel Core Ultra 9 285H (6 performance cores, 8 efficient cores, 2 low power cores) on scanning tasks without GPU. I purchased the Intel because it does have an Nvidia GPU, so itās a net win for the Intel laptop. But if I was foolish enough to do fusion, merges, etc. on the laptop, the AMD would/should be better with all cores being performance.
Hi @Dehidding
The slow lack of support evolved from past struggles to modern strength, but challenges remain due to Intelās long dominance, historical power issues, Windows 11 scheduler favoring Intel, and some OEM/software gaps, though AMDās Ryzen era has drastically improved things, making them very competitive the rest is still much behind and take a much longer time in development to reach the same level.
I left a note already , hopefully I can tell you all more about tomorrow.
HI,
With the latest Windows 11 update from May 2026, thereās an optimization for multithreading on AMD CPUs. Since that update, all my CPU cores are being fully utilized. Ryzen 9 9900X for desktop and ryzen 7 7735hs for my laptop.
Hi! Thx for letting us know. Iāve been searching on Inet but couldnāt find the answer: do you know exactly which update was it? TIA!
Hi, I donāt know which update caused it, but I recently updated my PC ā chipset drivers and Windows updates (my CPU: 9900X on X870).
I found some information here:
https://www.tweaktown.com/news/111469/amds-new-cppc-highest-frequency-feature-could-improve-cpu-scheduling-and-boost-behavior-in-windows-11/index.html
And now, the fusion step in Revo Metro uses around 79% CPU load, whereas before it was around 12%.
It seems that AMDās CPPC was previously sending imprecise information, causing Windows to assign workloads in a subāoptimal way across AMD CPU cores. As a result ā and this is just my understanding, Iām not an engineer ā Windows sometimes placed heavy calculations on logical threads instead of the strongest physical cores. This slowed down certain stages of the pointācloud fusion process, and while those slow steps were running, the other cores were basically idle.
Now, with the updated CPPC data and a betterāguided Windows scheduler, the workload appears to be distributed much more efficiently.
Please clarify the laser scanning or full field processing mode?
Fusion step after the scan in both modes
Others also confirmed the update being successful in processing the fusing mode for AMD CPUs
How many cores are you using? Are you talking about the load on one core (it rose to 78 percent) or the entire multi-core processor? The thing is, your link is talking about boosted processor frequencies. In my understanding, 78 percent of the entire processor load means that almost all cores are used, at around 70 percent.
I donāt see where that article says anything about an available Windows 11 update.
I havenāt seen any changes; laser scan fusion still uses one core on my 9950X3D with latest AMD chipset drivers and whatever is current according to Windows Update. Maximum usage of a single core is ~90%, but overall CPU usage is around 6%.
This seems to be true, on Intel processors, about 3 cores are used at 80-90 percent, but on the whole processor this amounts to a paltry 6-7 percent
