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The PCIe 5.0 tax: Intel's Z990 chipset for Nova Lake runs hotter and uses more power despite shrinking (www.techspot.com)
submitted 5 months ago by to c/hardware@lemmy.world
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[–] 1 point 5 months ago (2 children)

Why does a desktop PC need that many PCIe 5 lanes from the chipset? A GPU and a couple of SSDs can connect directly to the CPU. Nobody is running multiple GPUs in SLI anymore. Most other devices that you would use with a desktop probably only support PCIe 2 or 3.

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  • [–] 2 points 5 months ago*

    There's only 24 lanes on Intel

    16 for GPU

    4 for m.2

    4 for chipset (USB 3/4, wired/wireless networking, Sata III, and additional m.2 all share the same bandwidth from these 4 lanes)

    AMD has 28, but it's 8 lanes to the chipset iirc.

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