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Sandy bridge important question.

post #1 of 21
Thread Starter 
Im planning on a sandy bridge build. I see some of the more expensive boards do 16x16x8

Does it make a difference compared to the cheaper boards that do 16x8x8?
post #2 of 21
You mean PCIe? That only matters when you do SLI or Crossfire.
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Misaka
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post #3 of 21
I believe PCI-e bandwidth makes little to no difference, but the more expensive boards have other better features besides that. Do not pick a mobo based on the PCI-e bandwidth for the most part unless you play on 3-way sli it won't make a difference
post #4 of 21
Thread Starter 
Well i want as many fps as possible im going to build a good sli tri sli setup.
post #5 of 21
Tri SLI yes, x16/x8/x8 is what you want.
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post #6 of 21
As long as it supports at least 8x on each, its fine.
post #7 of 21
X8 to x16 is like nothing in it, your talking 10points in 3DMark with it. We are a long way from saturating PCI-E 2.0 standard. So i wouldn't concern yourself with it.
 
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post #8 of 21
I don't even understand it.. there's only so many PCIE lanes available on the 1155 design, how can they claim to run 16x16x8?
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post #9 of 21
Thread Starter 
The top end asrock board does it.
post #10 of 21
Quote:
Originally Posted by Seanage;15342396 
I don't even understand it.. there's only so many PCIE lanes available on the 1155 design, how can they claim to run 16x16x8?

CPU has 16 lanes for GPU, which goes through NF200. Motherboard uses NF200 to "duplicate" extra 16 lanes. First 16 lanes goes through first PCIe x16 slot. Later 16 lanes gets split into two x8 and goes through second and third slot respectively.
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Misaka
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