Pcie | 5.0 Specification

Note: As of current timelines, PCIe 6.0 (released in 2022) is the successor, utilizing PAM-4 encoding to hit 64 GT/s, but PCIe 5.0 remains the current industry standard for high-end consumer and enterprise hardware.

The specification tightened clock tolerance requirements to prevent timing drift at such high speeds, ensuring synchronization between the host and the device. pcie 5.0 specification