Does freebsd have performance and network improvements compared with Debian or windows when running on AMD 9950x?

LLVM Clang 19.1.7 and development version 20 is said to have support for -march=znver5 ZEN5 CPU architecture.
I dont have Accces to such a machine so I cant test ,
writeup here:

https://www.phoronix.com/review/clang20-gcc15-amd-znver5

SO with a 9950x cpu and FreeBSD 15 -current which includes Clang 19.1.7 , you would be able to test. -- NO garantees this works.

Install Freebsd from latest FreeBSD 15 Snapshot media.
install file /usr/share/examples/etc/make.conf as /etc/make.conf
edit variable CPUTYPE?=znver5
and rebuild according to Freebsd Handbook chapter 26.6
 
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