AMD's Ryzen 7000 CPUs will be faster than 5 GHz, require DDR5 RAM, support PCIe 5.0 | Ars Technica
Which Intel and AMD CPUs Support PCIe 4.0? - PC Guide 101
AMD X570 Detailed Block Diagram (PCIe Lanes and I/O options from chipset) : r/Amd
Amazon.com: Micro Center AMD Ryzen 5 5600X Desktop Processor 6-core 12-Thread Up to 4.6GHz Unlocked with Wraith Stealth Cooler Bundle with MSI B550-A PRO AM4 DDR4 ATX Motherboard PCIe 4.0 M.2 USB