The official PlayStation blog has recently published its "Ultimate FAQ" aimed at future owners of the PlayStation 5. Some interesting tidbits include the absolute confirmation of an RDNA 2-based GPU, the inclusion of a base in the PS5 box, hardware-based ray-tracing capability, and the requirement for a day one system software update download.
https://www.notebookcheck.net/Exhaustive-PlayStation-5-FAQ-answers-all-those-burning-questions-about-the-PS5-console-and-yes-it-has-an-RDNA-2-based-GPU-and-hardware-based-ray-tracing.503398.0.html