Looking for a PCIe 3.0 board....

could you please tell us why do you need the mobo having 2 PCI-E 3.0, also there is 1% difference between x16/x16 vs x8/x8.
Getting the mobo with x16/x16 is just a totally waste.

If you really need to have two PCIe 3.0 x16 slots at full speed (I can't imagine why unless this is a compute machine, there isn't a single PCIe card that uses that much bandwidth and consumer graphics cards don't even need more than a PCIe 3.0 x4 slot, PCIe 2.x x8 slot, or PCIe 1.x x16 slot to deliver over 95% of their performance), then get an LGA 2011 board with an X79 CPU. The only actual use for two PCIe 3.0 x16 slots, that I can think of, would be to facilitate two high end Tesla cards for some serious compute power.

Is it really that insignificant of a diff between 8x and 16x? If thats the case, then I dont care. I was thinking it was a big difference. If so, then I have many choices. Thanks for the information.

Best answer selected by MrMikeAZ.

Thanks guys. Any boards you recommend then with 2 PCIe slots? I am thinking with the H77 chipset, but not set in stone.

H77 shouldn't have two PCIe x16 slots, unless all but one of them are either x4 or x1 slots with the plastic shell of an x16 slot. If you want an Intel board with two slots, than Z77 would be your best choice.

you would need a z68 or a z77 chipset board that is labled crossfire/sli ready. some boards, although having multiple pci express slots dont have the ability to sli/crossfire