Engineering 101

PCI-SIG® Releases PCIe® 6.0 Specification

PCI-SIG® announced the official release of the PCIe 6.0 specification, reaching 64 GT/s transfer speeds, doubling PCIe 5.0’s data rate, and providing low latency and reduced bandwidth overhead.

Features include:

  • 64 GT/s raw data rate and up to 256 GB/s via x16 configuration
  • Pulse Amplitude Modulation with 4 levels signaling, leveraging PAM4 already available
  • Lightweight Forward Error Correct (FEC) and Cyclic Redundancy Check (CRC) to mitigate the bit error rate increase associated with PAM4 signaling
  • Flit (flow control unit) based encoding supports PAM4 modulation and enables more than double the bandwidth gain
  • Updated Packet layout used in Flit Mode to provide additional functionality and simplify processing
  • Backwards compatibility with all previous generations of PCIe technology

To learn more about PCI-SIG, visit PCI-SIG members can download the full specification here.

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