PCIE 6.0 vs 5.0 - All you need to know

By Rambus Inc.

December 13, 2021

While the PCI-SIG has announced that the release of the PCI Express® 6.0 (PCIe 6.0) specification should arrive in 2022, Rambus is already addressing the needs of early adopters looking for the most advanced PCIe 6.0 IP solutions for their SoC and ASIC designs.

You can find all about the new generation specification in the article below.

Contents

• What is PCIe 6.0?
• What’s new with PCIe 6.0?
• Why PCIe 6.0 now?
• Conclusion

What is PCIe 6.0?

Since PCIe 3, each new generation of the standard has seen a doubling in the data rate. PCIe 6.0 will boost the data rate to 64 gigatransfers per second (GT/s), twice that of PCIe 5.0. For a x16 link, which is typical of graphics and network cards, the bandwidth of the link reaches 128 gigabytes per second (GB/s). As in previous generations, the PCIe 6.0 link is full duplex, so it can deliver that 128 GB/s bandwidth in both directions simultaneously.

PCIe is proliferated widely beyond servers and PCs, with its economies of scale making it attractive for data-centric applications in IoT, automotive, medical and elsewhere. That being said, the initial deployments of PCIe 6.0 will target applications requiring the highest bandwidth possible and those can be found in the heart of the data center: AI/ML, HPC, networking and cloud graphics.

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