News for hackers. Stuff that matters.

A comment on Intel 8th Gen Core with Radeon RX Vega GPU Presentation. Parent comment

Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by dogma1138 on Sunday January 07, 2018 @06:08PM (#16093296)
Intel doesn't connect to the chipset with PCIe, it does that with DMI.

Coffee Lake only has 16 PCIE lanes on the CPU, 4 DMI Lanes (about equivalent to 4 PCIE 3.0 lanes) which connect to the PCH and 24 PCIE 3.0 lanes coming from the chipset.

[ Parent | on HN ]
Re:Intel 8th Gen Core with Radeon RX Vega GPU Presentation by bryanlarsen on Sunday January 07, 2018 @07:30PM (#16093728)
I over simplified. DMI is a PCI Express variant. I thought it had increased to 8 lanes in Coffee Lake, but I was mistaken. That makes it even more important to save some of the CPU PCIe lanes for NVMe and thunderbolt.
[ Parent | on HN ]