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PCIe 5 is 32 GT/s (~4GB/s) per lane, and of course double of that of PCIe 4.

It's a crazy rate that can't be trivial to achieve.

It seems pretty worrying, since PCIe 6 for the first time couldn't double the operating frequency and it's not likely to be possible in the feature for traditional copper lanes. I haven't heard how DDR6 will solve this issue. PAM or not PAM?

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