Which Gigabyte Motherboards can handle 3 way SLI/CrossFire?

I am planning to buy next week and will use either dual 670's or 7950's. I plan to add a third board next year if needed for the latest and greatest games. Which Gigabyte boards can handle triple SLI/CF? I seem to be getting conflicting data from reviews. I will be getting Gigabyte boards. Either:

GIGABYTE GV-R795WF3-3GD Radeon HD 7950 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414

OR

GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125423
 

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Thanks, but I forgot to mention, I'm getting an I5 3570K so the first two were fine.