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IntelEnglish · 10 months ago

Question about Intel chipset bandwidth.

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Question about Intel chipset bandwidth.

lintstah1337@alien.topB to

IntelEnglish · 10 months ago

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A single lane of DMI 4.0 has a speed of 16GT/s

https://en.wikipedia.org/wiki/Direct_Media_Interface

A single lane of PCIe 4.0 has a speed of 16GT/s

https://en.wikipedia.org/wiki/PCI_Express

Intel Z790 chipset is connected to the CPU through a DMI 4.0 x8 lanes (128GT/s)

https://www.intel.com/content/dam/www/central-libraries/us/en/images/2023-09/block-diagram-intel-700-series-chipset.png.rendition.intel.web.1920.1080.png

https://www.intel.com/content/www/us/en/products/docs/chipsets/desktop-chipsets/z790-chipset-brief.html#

How is it possible to have up to 20x PCIe 4.0 (320GT/s) from the chipset if the chipset only has a bandwidth of (128GT/s) from the CPU?

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10 months ago
All I know is speed -

https://i.imgur.com/DnLTTFL.png

Before anyone wants to point out that Optane is better for random read / write, do also show me 8 Tb of Optane storage.

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