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PCI-SIG has already announced the PCIe 7.0 @ 128 GT/s specification

The PCI Special Interest Group, or PCI-SIG, seems to have a lot of free time, to the point of getting up today and announces the PCI-Express 7.0 specification / PCIe 7.0, which will continue to double the bandwidth over the previous version until it reaches 128 GT/s.

Although PCIe 5.0 was announced in 2019, and currently it is not a standard, nor are any products that use this interface, you can already imagine what will happen with PCIe 7.0, and it is expected that that, in the best case, the first products with this interface arrive in 2028it is therefore a somewhat premature announcement, and even more so if we take into account that in January of this year they announced PCIe 6.0 Interface Specificationswhich would arrive in the year 2025. It reminds a bit of Intel, announcing non-existent things (ba dum tss).

PCIe 7.0 performance

For 30 years, PCI-SIG® has been at the forefront of technological innovation. Our PCI Express® (PCIe®) specification has retained its position as the de facto interconnect of choice and a critical component of IT continuity. At PCI-SIG Developer Conference 2022, we celebrated our 30th anniversary by announcing the next evolution of PCIe technology: the PCIe 7.0 specification.

The upcoming PCIe 7.0 specification is expected to increase speed again in three years, increasing the data rate of the recently released PCIe 6.0 specification to 128 GT/s. The PCIe 7.0 specification will be released for members in 2025.

Bandwidth PCIe 7.0 vs. PCIe 6.0 vs. PCIe 5.0

The PCI-SIG Technical Working Groups will develop the PCIe 7.0 specification with the following functionality goals:

  • Shall provide 128 GT/s raw bit rate and up to 512 Gb/s bi-directional via x16 configuration
  • Using PAM4 signaling (4-level pulse width modulation)
  • Focus on channel and scope settings
  • Pursuing Low Latency and High Reliability Goals
  • Improved energy efficiency
  • Maintain compatibility with all previous generations of PCIe technology

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