PlayStation 5 Pro specifications thoroughly explained, 'FLOPflation' debunked by PS5 system architect Mark Cerny
According to Mark Cerny, the biggest improvements of PS5 Pro are considered to be its new Ray Acceleration structure using BVH8 (Bounding Volume Hierarchy) and leveraging improved "Stack management in hardware," which means that graphics shader code is now better-managed, simpler, and more performant on the new hardware.