Two-way SLI / Three-way Crossfire
are the Gigabyte GA-P67A-UD7-B3's videocard slots - this
motherboard packs in four physical PCI Express 2.0 x16 videocard
slots, two of which operate in x16 mode, two in x8 mode.
The board supports
2-way nVidia SLI care of an embedded nVidia NF200 chipset and 3-way AMD
CrossfireX for multi-videocard gaming goodness. Gigabyte designed this
motherboard for multi-videocard gaming, in addition to the graphics card
slots there is plenty of SATA and USB 3.0 to go around.
Two videocards will operate in x16/x16 mode, three
videocards at x16/x8/x8 mode. Remaining expansion slots include one PCI Express x1 slot and two legacy PCI slots.
between the videocard PCI Express 2.0 x16 slots is
good. Since only the first, third and fourth slots are
utilized, dual-slot videocards will fit in without issue and still have
enough room for cooling.