I'm trying to find a specific AM5 motherboard that can accommodate two GPUs in the first PCIe x16 slot by splitting it into x8/x8 mode. My current AM4 setup does this perfectly, and I'd like to continue using that setup without switching to riser cables, which can get pretty pricey. Does anyone know if there are AM5 motherboards that offer a similar "true" bifurcation feature, or is that something we left behind with AM4?
1 Answer
It's definitely possible to find AM5 motherboards that can support dual GPUs in an x8/x8 configuration. Just to clarify, you won't be physically slotting two GPUs into a single slot—it's more about how the lanes are allocated. Here are some models I've looked up that should meet your needs:
- Asus ROG Crosshair X870E APEX
- Asus ROG Crosshair X870E Hero
- Asus ROG Crosshair X670E Hero
- ASUS ProArt X670E Creator
- ASUS ProArt B650 Creator
- MSI X870E Godlike (note that this one actually allows 16+8 but not 8+8)
- MSI X670E Godlike
- MSI X670E Ace
- MSI X870E Carbon (this one is 8+4 but still worth considering)
- MSI X670E Carbon
Thanks for the info! Just to clarify, when you say 'physically,' I actually do use a riser cable that plugs into the single PCIEX16_1 slot—check out how it looks here: https://i.postimg.cc/v8vk4pfL/riser.jpg. This setup has worked well for me!