UK etailer Scan computers already has the Gigabyte GA-MA790FX-DQ6 in stock. Officially, AMD still has to launch this chipset and AMD 790FX is something that we have called RD790 for months, as this was the official codename.
The board supports socket AM2+ and will support Phenom and Athlon CPUs, as well as SATA II and DDR2 memory up to 1066MHz.
It has two PCI slots, 1 PCIe 1X, two PCIe 8X for graphic cards and additional two PCIe 2.0 16X for additional graphics cards.
If you stick with two cards and Crossfire, you will use PCIe 2.0 and if you want to go Quad Crossfire, you will go for four times PCIe 8X.
The board costs a saucy £162.14 Inc VAT and you can buy it here.