lane sharing

[Michael Durrant]

what is this lane sharing on the new x870e motherboards? is it really a concern to worry about?

 

[Michael Durrant]

You'll need to be more specific, since lane sharing always depends on the motherboard and how it has been configured by the manufacturer.

If it matters really depends on you.., for example: if the board has 4x M.2 slots and the use of all 4 slots knocks your graphics card down to 8 lanes, the questions are: 1. do you care about a few % of lost performance and 2. do you even plan to use all 4 M.2 slots?

For some motherboards, it will disable a secondary PCI-E slot, in which case: if you have PCIE expansion cards (e.g. sound card, 10Gb LAN, extra M.2 slots) then that could be a problem.

10gb lan is pointless as my internet aint that fast, and i doubt i will use all m.2 slots myb 2 at best and some ssds. but keep hearing to avoid such motherboard because of lane sharing but no information why to avoid. but as you say if use all 4 then it will knock your gpu down to 8 lanes

 

[Michael Durrant]

If you’re mostly using one or two SSDs and aren’t concerned about squeezing every last drop of performance from your GPU, you might be fine with an X870E. Just double-check the specs to make sure you won’t lose anything critical like SATA ports.

I'll use one m.2 for operating system and another for games myb get a (4tb) and the odd 2x ssds for extra storage. Mainly just game and watch YouTube.