https://wccftech.com/asus-firmware-update-lists-unannounced-amd-epyc-cpus/

ASUS recently showed a new firmware for the RS700A-E9-RS12V2 1U server, and this update has unannounced AMD EPYC (codenamed Rome) processors, Twitter user @momomo_us first noticed this document. Just like any other EPYC 7002 Series family, these chips utilize the latest Zen 2 microarchitecture and are manufactured at TSMC under the 7 nm FinFET process node. This processor also supports eight channels of DDR4 RAM and provides up to 128 high-speed PCIe 4.0 lanes.

The EPYC 7662 has a total of 64 cores and 128 threads, and this 64-core chip has 256 MB of L3 cache, a 2.00 GHz base clock. The boost clock of this chip has not been released, but the thermal design power (TDP) of this chip is 200-watts.