N. will likely use the Nvidia Orin chipset, which is available as developer samples now and will be on the market in 2022. Probably a cut down version. Nvidia did hire developers specifically for game consoles based on Orin chipset.
CPU: 12x Arm Cortex-A78AE (Hercules) ARMv8.2-A (64-bit)
GPU: Ampere-based