I’ll have to double check, but I came from a B450 board. It definitely allowed me to run my RAM at a higher XMP profile (4x 3200MHz), and it has way better IOMMU groups. Each PCIe device gets its own group, so they can all be passed to different VMs.
I have a similar setup. I just recently switched to the ASRock Phantom X570 for $100. It’s a fantastic board at that price.
Did it improve the 5900X’es boost?
I’ll have to double check, but I came from a B450 board. It definitely allowed me to run my RAM at a higher XMP profile (4x 3200MHz), and it has way better IOMMU groups. Each PCIe device gets its own group, so they can all be passed to different VMs.