PCI Express 6.0 Specification Finalized: x16 Slots To Reach 128GBps


PCI Special Interest Group (PCI-SIG) has released the much-awaited final (1.0) specification for PCI Express 6.0. From a report: The next generation of the ubiquitous bus is once again doubling the data rate of a PCIe lane, bringing it to 8GB/second in each direction — and far, far higher for multi-lane configurations. With the final version of the specification now sorted and approved, the group expects the first commercial hardware to hit the market in 12-18 months, which in practice means it should start showing up in servers in 2023. First announced in the summer of 2019, PCI Express 6.0 is, as the name implies, the immediate follow-up to the current-generation PCIe 5.0 specification. Having made it their goal to keep doubling PCIe bandwidth roughly every 3 years, the PCI-SIG almost immediately set about work on PCIe 6.0 once the 5.0 specification was completed, looking at ways to once again double the bandwidth of PCIe. The product of those development efforts is the new PCIe 6.0 spec, and while the group has missed their original goal of a late 2021 release by mere weeks, today they are announcing that the specification has been finalized and is being released to the group’s members. As always, the creation of an even faster version of PCIe technology has been driven by the insatiable bandwidth needs of the industry. The amount of data being moved by graphics cards, accelerators, network cards, SSDs, and other PCIe devices only continues to increase, and thus so must bus speeds to keep these devices fed. As with past versions of the standard, the immediate demand for the faster specification comes from server operators, whom are already regularly using large amounts of high-speed hardware. But in due time the technology should filter down to consumer devices (i.e. PCs) as well.



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