Initially, Mark Zerny prepared this lecture for the GDC 2020, so what was told is primarily devoted to game developers, and not ordinary players.

Processor - 8-core AMD Zen 2 at 3.5 GHz
Graphics core - 10.28 teraflops based on AMD RDNA 2
RAM - 16 gigabytes of GDDR6 at a speed of 446 gigabytes per second
Memory - 825 gigabytes of NVME SSD at speeds from 5.5 to 9 gigabytes per second
Drive - 4K UHD Blu-Ray.

So far, Sony cannot confirm that all PS4 games will be available on the PS5 release, but the first tests are very positive. Problems arise because the new console is too fast, so you need to check each project separately for compatibility. Unfortunately, nothing was said about compatibility with PS3, PS2 and PS1. Ray tracing will be used not only for the visual component, but also for “three-dimensional sound”. This will be a very important part of the console, for which a separate chip is used – Tempest 3D AudioTech. Zerni, using the example of Dead Space, said that if then we only roughly understood where the source of the signal was, then now we would precisely determine where it comes from.