And debuts A520 chipset alongside overhauled StoreMI. In a widely reported move, AMD has today announced three additions to the 3rd Generation Ryzen desktop family. Augmenting the existing eight Zen 2-based 3000-series chips are the Ryzen 9 3900XT (12C24T), Ryzen 7 3800XT (8C16T), and Ryzen 5 3600XT (6C12T). Here is how they fit into the wider landscape.