[huhn]

so we just ignore the benefits on the 10 core CPU?

and again you can workaround the clockspeed with a simple bios setting and proper cooling.

From Figures 1 and 2 we can make the following inferences:
• For desktop and workstation SKUs (like the Intel Core i9-
7900X processor that we tested), Intel AVX-512 kernels
can be enabled for all encoder configurations, because the
reduction in CPU clock frequency is rather low.
• For server SKUs (like the Intel Xeon Platinum 8180
processor on which we tested), the frequency dip is higher
and increases with more cores being active. Therefore,
Intel AVX-512 should only be enabled when the amount
of computation per pixel is high, because only then is the
clock-cycle benefit able to balance out the frequency
penalty and result in performance gains for the encoder.
Specifically, we recommend enabling Intel AVX-512 only
when encoding 4K content using the slower or veryslow
preset in the main10 profile. We do not recommend
enabling Intel AVX-512 kernels for other settings
(resolutions, profiles, or presets), because unexpected
inversions with respect to using the Intel AVX2 kernels
may result.
Conclusion
This paper described our experience with accelerating
x265 and open-source HEVC encoders, with Intel AVX-512
instructions. From our experience we recommend that
for workstation and client CPUs that have Intel AVX-512
instructions, the kernels may be used across all profiles of
x265. However, for server-grade CPUs that have the Intel
AVX-512 instructions, this acceleration should be used only
for certain profiles of x265 that focus on encoding high
resolution video (4K and higher) in the main10 profile using
the slower or veryslow presets due to the impact that the
Intel AVX-512 instructions have to clock frequency. For other
profiles on server CPUs with Intel AVX-512 instructions,
enabling these kernels is not recommended.

so this read like a not recommend for you?