Apple MacOS "Big Sur" Beta Driver Code Points to AMD "Navi 31" GPU

AMD's "Navi 20-series" GPUs implementing the RDNA2 graphics architecture are barely close to launch (September 2020 unveiling expected); and there's already talk of the "Navi 30-series." When digging through the driver code for AMD Radeon graphics that ships with Apple's MacOS "Big Sur" developer beta 1, Hardware Leaks (_rogame) uncovered pointers to an AMD "navi31" GPU. This could be the very first indication that AMD will codename successors of the RDNA2-based "Navi 2#" GPUs, such as the "Navi 21," under the "Navi 3#" series. It remains to be seen if these chips implement the RDNA3 graphics architecture, or are a refresh of RDNA2-based chips on a newer process.