Of course, everybody knows already that X570 will bring PCIe Gen 4.0 slots towards the platform, the diagram, however, confirms that to be managed as a single x16 PCIe Gen 4.0 slot or split up in ...

It's clear already that Ryzen 3000 CPUs (Matisse) and the X570 chipset will support PCIe 4.0. The new diagram once again confirms that the processor will provide a total of 24 PCIe 4.0 lanes.