PCI-SIG, the consortium that governs the PCI Express I/O interconnect, released draft specification version 0.7 for the upcoming PCI-Express 7.0 standard (or PCIe Gen 7). An early-2025 release of this draft could indicate that PCIe Gen 7 gets finalized into specification version 1.0 by the end of 2025, from where implementers can pick it up to design their devices around. We are now at 32 Gbps per lane per direction with PCIe Gen 5, and PCIe Gen 6 doubles it to 64 Gbps, which would mean PCIe Gen 7 will double that further to 128 Gbps per lane per direction. PCI-Express 7.0 x1 would offer the same bandwidth as PCI-Express 3.0 x16. We could realistically expect the first computing platforms implementing PCIe Gen 7 to come out around 2027 or even 2028. PCIe forms the physical layer for a number of derivative standards, such as CXL, Thunderbolt, USB (USB 3.0 onwards), NVMe, SDexpress, CFexpress, and DMI.Many Thanks to Tumble George for the tip

Marvell Technology, Inc., a leader in data infrastructure semiconductor solutions, demonstrates its industry-leading 3 nm PCIe Gen 7 connectivity at the OCP Global Summit, October 15-17, at the San Jose Convention Center. PCIe Gen 7 doubles data transfer speeds, enabling continued scaling of compute fabrics inside accelerated server platforms, general-purpose servers, CXL systems and disaggregated infrastructure. Building on its widely deployed PAM4 technology and utilizing its industry-leading accelerated infrastructure silicon platform, Marvell has developed the industry's most comprehensive interconnect portfolio addressing all high-bandwidth optical and copper connections in AI data centers. This innovative portfolio empowers cloud data center operators to optimize their infrastructure for their specific architectures and workloads to meet the exponential demands of AI.

Marvell pioneered PAM4 technology over a decade ago and leads the industry in PAM4 interconnect shipments. Today, most of the optical interconnects used in data center backend and frontend networks are based on PAM4 technology. As compared to PCIe Gen 5, which was based on NRZ modulation, PCIe Gen 6 and 7 require the use of PAM4 modulation. With its recent PCIe Gen 6 retimer announcement and this PCIe Gen 7 demonstration, Marvell extends its industry-leading PAM4-based optical and copper interconnect portfolio beyond Ethernet and InfiniBand into copper and optical PCIe, CXL and proprietary compute fabric links.