https://wccftech.com/amd-zen-4-tsmc-enhanced-5nm-node-powers-next-gen-ryzen-epyc-cpus/

AMD has had a solid run with TSMC in developing its Ryzen CPUs and it looks like they'll be getting the full benefits of this long-running partnership with its upcoming Zen 4 based 5nm CPUs. AMD is expected to launch Zen 4 based Ryzen and EPYC CPUs in 2021 and reports from ChinaNews (Via PC Gamer) suggest that Zen 4 might get the most advanced and enhanced version of TSMC 5nm node for its CPUs.

The prime source at ChinaNews reports that TSMC has developed what they are referring to as an enhanced 5nm process node. Previously, it was reported that aside from Apple, Huawei could have been a potential customer but yesterday's report revealed that Huawei is now going with SMIC and not TSMC. But the advanced version of 5nm means that TSMC would have a leading edge over the competing 5nm nodes.