Why do the Z390 series motherboards have 24 PCI-E lanes when the 8/9th generation Intel CPU only have 16 PCI-E lanes? - Quora
What is the difference between the PCIe lanes from the CPU and the ones from the motherboard? Is there a performance difference? - Quora
Why do the Z390 series motherboards have 24 PCI-E lanes when the 8/9th generation Intel CPU only have 16 PCI-E lanes? - Quora
DMI/UMI and you! A guide to your motherboard's chipset bandwidth. | Audio Science Review (ASR) Forum
![Z790 Chipset: More I/O Than Z690, But Same Performance - Intel Core i9-13900K and i5-13600K Review: Raptor Lake Brings More Bite Z790 Chipset: More I/O Than Z690, But Same Performance - Intel Core i9-13900K and i5-13600K Review: Raptor Lake Brings More Bite](https://images.anandtech.com/doci/17601/z790-chipset-blockdiagram-4.png)