Benchmarks comparing the PS4 Jaguar CPU to the PS5 Zen CPU show what a massive upgrade the PS5 is for devs, they had regularly expressed frustration at last gen's weak CPU capability
PlayStation 4 GPU Vs Xbox One GPU Vs PC - The Ultimate Benchmark Comparison
What graphics card is a PS4 equivalent to? - Quora
PlayStation 4 GPU Vs Xbox One GPU Vs PC - The Ultimate Benchmark Comparison
PlayStation 4 Specifications Analysis - Are They Actually Better than a Similar Cost PC?
Inside PlayStation 4 Pro: How Sony made the first 4K games console | Eurogamer.net