PCIe has doubled bandwidth every generation for two decades, PCIe 8.0 is on track to do it again at 1TB/s

PCI-SIG released a 0.5 draft of PCIe 8.0, aiming for 256 GT/s signaling and up to 1 TB/s bandwidth on x16.

The draft also emphasizes lower power consumption, backward compatibility, and support for next-generation connector options.

PCIe 8.0 is targeted for completion in 2028, extending the industry’s pattern of doubling bandwidth each generation.

If finalized, it would be a major upgrade path for GPUs, NVMe SSDs, AI infrastructure, and data center systems.