Are Intel CPUs better than AMD CPUs for DPDK applications?

[Stephen Hemminger]

On Mon, 21 Feb 2022 21:28:08 +0100
Staffan Wiklund <staffan491 at gmail.com> wrote:

> Stephen, thanks for your answer.
> I realize the statement is very vague.
> I was thinking of if there was something common in the design of Intel and
> AMD CPUs respectively that has an impact on their use by DPDK applications.
> Do you know if there is such a common design difference between Intel and
> AMD CPUs or is it just a matter of using an Intel or AMD CPU with the
> requested performance?
> 
> Regards
> Staffan

I am not a CPU expert. But compare memory bandwidth, clock rate, PCI Express version
and support for AVX support (for some features). There a few places in DPDK
that can use AVX512 but it is limited 
https://doc.dpdk.org/guides/howto/avx512.html

Also there is a tradeoff with more cores, NUMA, etc as well as cost.

Don't believe simple tribal knowledge, you need to look under the covers.