The PCI-SIG consortium has announced the development of the PCI Express 8.0 interface. The new standard will deliver 256 gigatransfers per second (GT/s), doubling the bandwidth of PCI Express 7.0. The x16 configuration will support a bidirectional data rate of 1 terabyte per second (TB/s). Commercial devices featuring PCIe 8.0 are expected to enter the market in 2028.
Storage drives utilizing the PCIe 8.0 x4 interface are projected to reach sequential read and write speeds of up to 128 GB/s. This performance level represents an eightfold increase over current drives based on PCIe 5.0 technology.
On the way to 2028, PCI-SIG will continue refining the specification. Equipment manufacturers will integrate the interface into future hardware platforms during this period.
PCIe 8.0 will introduce a new connector design that ensures full backward compatibility with devices from earlier PCIe generations. The specification aims to enhance power efficiency, reduce latency, and maintain reliable data transmission. It will retain the PAM4 signaling method used in recent versions.
The final specification for PCI Express 7.0 was released by PCI-SIG in June 2025. PCIe 7.0 provides four times the bandwidth of PCIe 5.0, the current standard in modern computing systems.
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