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Official PCIe 8.0 draft aims for 1 TB/s data rate

The PCI-SIG has released draft 0.5 of the PCIe 8.0 specification, targeting 256 GT/s raw bit rate and 1 TB/s bidirectional bandwidth across 16 lanes. The final spec is expected in 2028, but hardware may follow later. PCIe 8.0 uses PAM4 signaling and Flit-based encoding, focusing on AI, datacenter, and other high-bandwidth applications rather than consumer use.

SourceHacker News AIAuthor: LorenDB
Official PCIe 8.0 draft aims for 1 TB/s data rate
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Key points

  • PCI-SIG releases draft 0.5 of PCIe 8.0, aiming for 256 GT/s and 1 TB/s bidirectional.
  • Final specification expected by 2028; hardware like SSDs likely years later.
  • Continues PAM4 and Flit encoding from PCIe 6.0, targeting AI, datacenter, and quantum computing.
  • Not aimed at consumers; a single PCIe 4.0 x1 lane suffices for 10GbE networking.

Highlights and analysis are generated automatically and may contain errors. Check the original source.

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