Pcie 6.0, final specs should be ready by 2021
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While Intel processors are still only PCIe 3.0 compliant, and AMD's latest Zen 2 processors are PCIe 4.0 compliant, PCI-SIG, the consortium that designs the PCIe specification, has announced that it has reached version 0.3 for the specification. PCIe 6.0. The design of the new specification started three months ago.
PCI-SIG announced that it has reached version 0.3 for the PCIe 6.0 specification
According to PCI-GIS, the final specifications should be ready by 2021, so we may be considering whether products will adopt it sometime between 2022 and 2023. By comparison, the group released the final specification for PCIe 4.0 in October 2017, and we saw the first supported products this year, or two years later.
If we extrapolate, then we should expect the PCIe 6.0 specification to appear in early products no earlier than the end of 2022, unless some manufacturers go ahead with implementing a non-final revision of the specification.
PCIe 6.0 will once again double the data rate to 64 GT / s compared to PCIe 5.0, or just under 8 GB / s (7, 880 MB / s) per track. A PCIe 6.0 x16 slot would then achieve a data rate close to 128GB / s. The PCI-GIS has always aimed to release a new version of the specification when it can double the data rate of the previous generation.
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PCIe 6.0 will also be compatible with all generations of previous specifications, which has been another of the consortium's main objectives. The group has implemented two main changes including PAM-4 (Pulse Amplitude Modulation with four levels) encoding, a technology used by ultra-high-end network standards, as well as forward error correction (FEC) low latency, which comes with additional mechanisms that increase bandwidth efficiency.
Apparently, the arrival of new standards and PCI Express connections is going to accelerate in the coming years, with all the advantages and defects that this entails. Advantages for the gain of bandwidth, but also for updating our motherboards more regularly to take advantage of those benefits. We will keep you informed.
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