https://wccftech.com/dual-amd-epyc-7773x-3d-v-cache-cpus-128-cores-1600-mb-cache-overclocked-4-8-ghz/

AMD EPYC 7773X 3D V-Cache powered Milan-X CPUs are currently shipping to cloud data centers across the globe & it looks like some retailers are also selling QS chips in the APAC market (unofficially). Such samples have been acquired by Chinese content creator, 穷三代kenaide科技, who has posted a video testing the dual chips in various benchmarks.

The AMD EPYC 7773X Milan-X CPU has the '100-000000504-04' OPN and is identified as an ES chip within CPU-z. The CPU features a base clock of 2.1 GHz and a boost clock of 3.4 GHz while is a 100 MHz lower clock compared to its final specifications which are a 2.2 GHz base and a 3.5 GHz boost.