this post was submitted on 14 Jun 2024
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Is PCIe bandwidth a practical limitation at the moment for consumers? While it means you can use fewer lanes off the CPU there is no practical reason for consumers to be upgrading often enough to utilize faster generations. My impression was that the later generations are for server applications where more efficient use of PCIe lanes is a real benefit.
PCIe is a bottleneck on large GPU systems. NVIDIA developed the NVLink protocol, which is way faster, to interconect GPUs and GPU systems on NDR400 Infiniband networks.