Wondering about crossfire setup on New Z87-WS w/ dual x16 pci express option and cpu compatibility.

I am obviously no genius. That being said, is the i7-4771 cpu capable of matching the MoBo's dual x16 pci express ability. Then, mainly I am wondering about when cross-firing on this MoBo (also new), which pci express slots are the actual dual x16 capable slots?

{Asus Z87-WS} motherboard // {QuadCore i7-4771} cpu // {MSI R7950 Twin Frozr} gpu CROSSFIRED w/ {Sapphire R7950} gpu BOTH [(3GD5/OC) 3GB 384-bit GDDR5] // {Thermaltake 1000watt} psu // {G.Skill 1333/1600Mhz DDR3 32G} ram // {Corsair Force SSD 360GB} maindrive // 2x {Seagate Barracuda HDD 1TB} + 1 {Seagate Barracuda HDD 3TB} storage drives // {Patriot Pyro SSD 60GB} paging drive // DVD-R\CD-R + ASUS BD-R+DVD-R+CD-R // running Win7pro
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    Yes, the i7-4771 is capable of giving you the x16/x16 capability on that board. In truth, any 1150 socket CPU will do that as the reason you get x16/x16 on that board, as opposed to x8/x8, is the PLX chip on the motherboard. A pricey component, hence why you only really see them on the more expensive boards (I think the Z87-WS is the cheapest board I've seen one on).

    For that particular motherboard I believe it's the two golden colored slots that provide you with x16/x16. If you were running a four card configuration, they'd be slots 1 and 3 so to speak (so with just two cards it leaves a space between them to improve airflow and reduce temperatures). The information on all this is in the motherboard's manual as well.
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