Provisional specifications for 'PCIe 8.0' supporting ultra-high-speed communication at 1TB per second have been released
PCI-SIG, the organization that developed the PCI Express (PCIe) standard for PC peripherals, released the provisional specification for PCI Express 8.0 (PCIe 8.0) on Tuesday, August 5, 2025. PCIe 8.0 will support data rates of up to 1TB/s.
PCI-SIG® Announces PCI Express® 8.0 Specification to Reach 256.0 GT/s
With each update to the PCIe standard, the bidirectional transfer speed has doubled, and PCIe 8.0 finally reaches a bidirectional transfer speed of 1TB/s. The data rate (bit rate) has also doubled from the previous generation to 256GT/s.
The table below shows the lane configuration and transfer speed. The 16-lane configuration allows for a transfer speed of 1TB/s, which is said to be suitable for applications requiring high-speed transfer, such as AI processing.
PCIe 8.0 will also consider new connector technologies and protocol extensions to improve bandwidth, as well as focus on low latency and high reliability. PCI-SIG plans to continue reviewing the specification and finalize it in 2028.
#PCISIG announces #PCIe 8.0 specification to reach 256.0 GT/s and is targeted for release to members by 2028. View the list of planned features > https://t.co/Ee12sHp8ux pic.twitter.com/ytNwUHa45N
— PCI-SIG (@pci_sig) August 5, 2025
At the time of writing, PCIe 5.0-compatible SSDs are widely available, including NVIDIA's GeForce RTX 50 series and AMD's Radeon RX 9000 series. However, there are currently no PCIe 6.0-compatible products for general consumers, and the PCIe 7.0 specification was only finalized in July 2025. For this reason, it will likely be quite some time before PCIe 8.0-compatible products become available.
Final specification of 'PCIe 7.0' released to support AI bandwidth demands with bidirectional transfer speeds of up to 512GB/s - GIGAZINE
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