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Quad Crossfire

Funkiwi75 · 2011-06-05 16:54:52

Hi, I was just wondering if I got the Asus Rampage III Black Edition Motherboard and got 4 x 5870 graphics cards that would slow each of the 4 x PCIe x16 slots down to x8, would that be better than 2 x 5870 cards both running at x16 speed?

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05-06-2011 5:54pm

#1

Funkiwi75

Registered Users Posts: 194 ✭✭

Join Date: December 2006

Posts: 129

Hi,

I was just wondering if I got the Asus Rampage III Black Edition Motherboard and got 4 x 5870 graphics cards that would slow each of the 4 x PCIe x16 slots down to x8, would that be better than 2 x 5870 cards both running at x16 speed?

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#2 07-06-2011 12:28am
lmimmfn

Registered Users Posts: 3,553 ✭✭✭

Join Date: March 2007

Posts: 3506

no, theres a PCIE scaling tech article on tomshardware( sorry man im too lazy to dig it up as i read it about 6-8 months ago ), basically on x8 you have 10-15% performance loss.

You'll have more issues with crossfire scaling than you will ever have with the pcie slots and tbh youre nuts doing that, better off with 2 or 3 6970's or a 6990 with a 6970

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