In my experience CI/CD tasks are more "single thread" bound that people expect. The Epyc CPU cores are _slow_ per core, so trading less cores for fewer faster ones actually works out well.
So if you are wanting fast CI/CD builds you are much better off using desktop CPU cores vs enterprise server cpus like this.
Wrote some thoughts up on this a while back https://martinalderson.com/posts/how-i-make-cicd-much-faster... - more focussed on the change from github to selfhosted runners, but I'd be interested to see a comparison on desktop class CPUs.