Intel B560 CHIPSET 12 PCIE LANES

[Anjani]

I searched for Intel b560 chipset. It has 12 lanes..

So, then suppose m.2 slot II use 4 lanes, and if there pcie X16 slot running at x4 mode that uses 4 lanes.. And pcie x1, two slots now it uses 2 lanes.. In what configuration are 12 lanes are set in Intel b560 chipset.. So in case of msi b560m bazooka.. How many chipset b560 lanes it is using, and are there any unoccupied lanes out of 12 in this mobo..

[PDifolco]

Intel boards really suck with their ton of idiotic limitations...

AMD boards all have like 20+ lanes even on B450

[Anjani]

20 minutes ago, PDifolco said:

Intel boards really suck with their ton of idiotic limitations...

AMD boards all have like 20+ lanes even on B450

Yaa that's shame for Intel.. 

[Zagna]

34 minutes ago, PDifolco said:

Intel boards really suck with their ton of idiotic limitations...

AMD boards all have like 20+ lanes even on B450

The chipset quoted here has 12 PCIe lanes. The CPU meant for it has 20 lanes. So that's 32 combined.

AMD Ryzen CPUs have 20 lanes and the AM4 chipsets can provide anything from PCIe 2.0 x4 to PCIe 4.0 x16 depending on which you choose.

So they're comparable.

[porina]

1 hour ago, Anjani said:

I searched for Intel b560 chipset. It has 12 lanes..

Don't confuse chipset lanes and CPU lanes. B560 was intended for use with Rocket Lake, which has 20 CPU lanes. Same usable lanes as AMD CPUs. Ryzen technically has 24 CPU lanes, but 4 of those are not accessible to the user so are only ever counted to make AMD sound better when in practice they are not. They are instead used to connect to AMD's chipset, where Intel have a separate dedicated link doing the same.

 

On both recent consumer AMD and Intel CPU lanes, typically you have 1x4 for M.2 slot, at least 1x16 which may be split to 2x8 on bigger mobos. Any other provision comes off chipset supplied lanes.