The CPU Support List for the Gigabyte X570 mentions AMD Ryzen 3 5100.
The standard online hardware sleuths noticed the addition of an intriguing unreleased AMD CPU—compatible with said board when updated to BIOS version F35—when Gigabyte updated the CPU support list for its X570 AORUS XTREME motherboard. The AM4 platform and Zen 3 continue to exist, coexisting with the 7000-series lineup. The “Vermeer-X” Ryzen 5 5600X3D arrives later this week as a Micro Center retail exclusive, and another Cezanne-based unit (an eight-core Ryzen 7 5700) has been added to motherboard support lists. Team Red may be preparing the quad-core/eight-thread “Cezanne” Ryzen 3 5100 processor for a forthcoming market launch.
Despite being included in SKU manifests from last spring, the Ryzen 3 5100 and Ryzen 7 5700 CPUs did not really launch in 2022. The Cezanne CPU microarchitecture is based on TSMC’s 7 nm process node, and both appear to be monolithic die APUs with their iGPUs disabled. These chips may occasionally appear as OEM components on online shopping sites, according to other news sources, but AMD has (so far) been very mum regarding potential retail releases.