What is the difference between the PCIe lanes from the CPU and the ones from the motherboard? Is there a performance difference? - Quora
FINALLY modern CPUs have almost unlimited PCIe lanes. But suddently all the mainboards have fewer and fewer PCIe Slots. Some even only 3. Why on earth is it so? - Quora
![pci express - Does "64 PCIe lanes" for a CPU mean 4 devices at full PCIe 16- lane bandwidth? - Super User pci express - Does "64 PCIe lanes" for a CPU mean 4 devices at full PCIe 16- lane bandwidth? - Super User](https://i.stack.imgur.com/9RsU4.jpg)