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Are You Ready for PCIe 6.0?

eejournal.com, Nov. 17, 2022 – 

I dont know about you, but Im starting to feel a little frazzled around the edges, as it were. Things are now progressing so fast that Im finding it difficult to keep up. I still hear people boasting "We now support PCIe 4.0," even though PCIe 5.0 is roaming wild and free, and now the folks at Rambus are briefing me on their PCIe 6.0 offerings. Pass me my smelling salts because Im too young for all this excitement!

Just to ensure that we re all tap dancing to the same skirl of the bagpipes, lets remind ourselves that PCI Express (Peripheral Component Interconnect Express), which is abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard that was designed to replace the older PCI, PCI-X and AGP bus standards. PCIe is now the common motherboard interface for computer graphics cards, hard disk drive host adapters, solid-state drives (SSDs), Wi-Fi and Ethernet hardware connections, and more.

Since its inception, each new release of PCIe has doubled the bandwidth of the previous generation, so no major surprises there. As illustrated below, however, the time between releases reflects an inflection point circa 2017.

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