PCIe 8.0 Announced by the PCI-Sig Will Double Throughput Again

Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by verall on Wednesday August 13, 2025 @02:48PM (#44892262)

If you look at a any of the nvidia DGX boards it's already pretty close.

PCIe is a standard/commodity so that multiple vendors can compete and customers can save money. But at 8.0 speeds I'm not sure how many vendors will really be supplying, there's already only a few doing serdes this fast...

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by Melatonic on Wednesday August 13, 2025 @08:22PM (#44895450)

Isnt it about latency as well with DGX boards? Vs PCI-E. You can only fit so much RAM on a board that will realistically be plugging into a slot

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by snerbles on Thursday August 14, 2025 @10:21AM (#44900731)

Most current DGX server assemblies are stacked and compression-fit, much higher density and more amenable to liquid cooling.

https://www.servethehome.com/micron-socamm-memory-powers-nex...

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by eggsome on Wednesday August 13, 2025 @09:47PM (#44895914)

Has the DGX actually shipped anywhere yet?

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by verall on Wednesday August 13, 2025 @11:12PM (#44896377)

Do you mean the new one? The older ones have been around for so long you can buy off-leases of them: https://www.etb-tech.com/nvidia-dgx-1-ai-gpu-server-2-x-e5-2...

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by y1n0 on Thursday August 14, 2025 @12:47AM (#44896825)

There are companies that specialize in memory controller ip that every one else uses, including large semi companies like Intel.

The ip companies are the first to support new standards, make their money selling to intel etc. Allowing intel or whomever to take their time to build higher performance ip.

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Re:PCIe 8.0 Announced by the PCI-Sig Will Double Throughput ... by bgnn on Thursday August 14, 2025 @03:12AM (#44897605)

These days you can buy any standard as a soft IP from Synopsys or Cadence. They take their previous serdes and modify it to meet the new standard. They have thousands of employees across the globe just doing that.

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