Sienna Cichlid alias Navi 21 (probably Big Navi) as current kernel driver patches indicate : r/Amd
AMD "Big Navi" GPUs to have up to 40% larger dies than the Xbox Series X - NotebookCheck.net News
AMD Navi 21 GPU Specs | TechPowerUp GPU Database
First references to RDNA3 Navi 31, Van Gogh, and Cezanne spotted in macOS Big Sur; AMD could join Intel and NVIDIA in opting for an MCM design for upcoming GPUs - NotebookCheck.net
AMD Navi 2x: detailed list of specs, expected pricing and possible release dates for the entire GPU lineup get leaked - NotebookCheck.net News