PC Processors

[ini]

Does soembody know where to find official information from AMD on how many lanes a processor supports? I mean at the specs* I see PCIe 3.0 16x, but not how many lanes are left for m.2 and the chipset. *https://www.amd.com/en/products/specifications/processors

[misterj]

ini, I found a Wikipedia article that says all Threadrippers have 64 and all others have 24.  I would suggest you open an AMD Online Support Ticket and ask them.  If you click on a processor in your posted link, some show the number of lanes and others do not.  Good luck and enjoin, John.

[ini]

But is the wiki maintained by AMD and therefore official information or by a third party?

[josh_uses_amd]

The wiki has citations to magazine review articles. fwiw

[elstaci]

This thread from LinusTechTips.com gives the information you are looking for concerning how many PCIe lanes and how many for M2 devices: https://linustechtips.com/main/topic/799836-pcie-lanes-for-ryzen/ 

From Guru3D concerning the latest Motherboard for the Threadripper and its 64 PCIe lanes: AMD Ryzen Threadripper 2920X review - The AMD X399 Chipset and Quad Channel memory