Wednesday, June 14th 2023
PCIe 7.0 Specification, Version 0.3 Available to PCI-SIG Members
PCI-SIG is pleased to share the PCI Express (PCIe) 7.0 specification, version 0.3 is now available to members. Version 0.3 of the specification indicates that the first review draft of the specification is complete and has received work group approval. This is an important milestone for PCI-SIG, demonstrating we are on plan for a full specification release in 2025.
The PCIe 7.0 specification is targeted to support emerging applications such as 800 G Ethernet, AI/ML, Cloud and Quantum Computing; and data-intensive markets like Hyperscale Data Centers, High-Performance Computing (HPC), Edge and Military/Aerospace.
PCIe 7.0 Specification Feature Goals:
Sources:
PCI SIG, Anandtech
The PCIe 7.0 specification is targeted to support emerging applications such as 800 G Ethernet, AI/ML, Cloud and Quantum Computing; and data-intensive markets like Hyperscale Data Centers, High-Performance Computing (HPC), Edge and Military/Aerospace.
- Delivering 128 GT/s data rate and up to 512 GB/s bi-directionally via x16 configuration
- Utilizing PAM4 signaling
- Defining the channel parameters
- Continuing to deliver the low-latency and high-reliability targets
- Improving power efficiency
- Maintaining backwards compatibility with all previous generations of PCIe technology
12 Comments on PCIe 7.0 Specification, Version 0.3 Available to PCI-SIG Members
And if the signaling is different, are the PCI-E 6 and 7 downwards compatible with lower versions?
Thank you.
Those that aren't members, don't have access to the specs.My assumption here is that PCIe controllers have to support both encoding/signalling schemes for backwards compatibility. It can't be that hard to do and wouldn't be the first standard to use multiple encoding standards, see USB as an example, which supports at least five different encoding standards.
If everything else remains the same, PAM4 has double the bitrate vs NRZ.