The pci on the motherboard is PCI Express 2.0 x16
the pci on the graphics card is PCI Express 3.0
What would happen if I place this graphics card in the motherboard?
I don't have much other option for the motherboard because there aren't many motherboards that could support the amd octo core vishera fx-9590(the 220W version).
It works perfectly fine.
There's little to no difference in performance or anything else between 3.0 and 2.0.
A 3.0 card works on 1.0, 2.0 and 3.0. Though if used on 1.0 there would be a big performance hit.
They basically mean that they have more potential. (1.0 max 250 MB/s - 2.0 max 500 MB/s - 3.0 max 985 MB/s)
Though 3.0 offers no improvement for now.
hopefully in a couple years they will have a new motherboard that can support pci 3 and can update.
There are MBs that support it but they're very expensive and since there is no software for them they perform like 2.0 for now (Or so I understand) but if you have the money you could buy one so you have it ready for when they start to be useful.