PCI-SIG Specifications
PCI-SIG
Every GPU and NVMe SSD connects via PCIe — the spec tree and ECN index live at PCI-SIG (membership for latest revs).
What It Is
PCI Express base specification and CXL (Compute Express Link) — the universal high-speed peripheral bus for GPUs, NVMe, and NICs.
Taxonomy
By spec: PCIe base · CXL · Form factors · ECNs
Top-Level Categories
Master Catalog
Sub-Indexes & Guides
Industry consortium (Intel, AMD, NVIDIA, ARM, Broadcom, Marvell, Qualcomm) that owns and maintains the PCI Express (PCIe) specification. PCIe is the universal high-speed serial bus for GPUs, NVMe SSDs, NICs, FPGAs, and virtually all discrete peripherals. PCIe 6.0 (2021) achieves 64 GT/s per lane. Membership required for normative spec access.
View all bodies →Curated specs from PCI-SIG
PCIe is the universal high-speed peripheral bus. Understanding lane width, bandwidth, BAR mapping, and MMIO is essential for GPU compute (CUDA/ROCm), NVMe performance tuning, SR-IOV NIC virtualization, and DPDK kernel-bypass networking.