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.

Looking at the diagram, we see the CPU serving up 24 PCIe 4.0 lanes, with 16 of them jettisoned to two PCIe x16 slots for graphics cards. Those slots can be configured as either PCIe 4.0 x16 or x8/x8.

Over at the chiphell forums, a block diagram leaked of the AMD X570 Chipset. ... So the Ryzen 3000 processor is connected to the X570 chipset using 4 lines of PCI-Express 4.0 x4 ...

• Supports PCIe 7.0 specification x2 to x16 lanes. • Pre-integrated Xpress Agent debug analysis IP. • Highly-configurable equalization algorithms with adaptive behaviors. • Power modes and ...

PCIe 7.0 Retimer for highly-optimized, low-latency data path for signal regeneration; PCIe 7.0 Multi-port Switch that is physically aware to support numerous architectures; ... PCIe 7.0 Controller IP ...