Pci Express Base Specification Revision 6.0 Jun 2026

January 11, 2022 (PCI-SIG) Report Author: Technical Analysis Unit Document Type: Specification Overview & Impact Analysis

Prior generations (1.0 through 5.0) used Non-Return to Zero (NRZ) signaling, where two voltage levels represented bits 0 and 1. PCIe 6.0 adopts . In PAM-4, each symbol period carries 2 bits (four voltage levels: -1, -1/3, +1/3, +1). pci express base specification revision 6.0