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PCIe 6.0 specifications preparing for 2021 launch

PCI-SIG announces version 0.5 of the next-gen PCIe 6.0 specification, on schedule for 2021.

@anthony256
Published Thu, Feb 27 2020 9:11 PM CST   |   Updated Tue, Nov 3 2020 11:44 AM CST

We are still just getting our toes dipped in the waters of PCIe 4.0 thanks to AMD's recent launch of the X570 chipset, and Ryzen 3000 series processors -- but PCIe 5.0 and PCIe 6.0 are also on the way. You know the story, technology never slows down.

PCIe 6.0 specifications preparing for 2021 launch | TweakTown.com

PCI-SIG has officially announced version 0.5 of the new PCIe 6.0 standard -- yeah PCIe 6.0, not PCIe 5.0 -- which will have an insane 8x the bandwidth of PCIe 3.0 that most people are using today. PCIe 3.0 starts things off with 32GB/sec of bandwidth on a full PCIe 3.0 x16 port, while PCIe 4.0 x16 offers up to 64GB/sec.

Things start to really ramp up with PCIe 5.0 x16 with a huge 128GB/sec, but PCIe 6.0 takes things to the stars with 256GB/sec on a PCIe 6.0 x16 port. This means we're looking at a huge 8Gbps per lane of bandwidth with PCIe 6.0 -- crazy stuff, and while graphics cards won't benefit too much from it (unless things change in a big way), next-gen NVMe SSDs, networking controllers, and other technologies will suck up all that additional bandwidth easily.

PCIe 6.0 will be fully backwards compatible with "all previous spec generations", says PCI-SIG Board Chair and President Al Yanes. He writes: "Two of the key changes that we're implementing include PAM-4 (Pulse Amplitude Modulation with 4 levels) encoding and low-latency Forward Error Correction (FEC) with additional mechanisms to improve bandwidth efficiency".

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Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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