5850x2,will 8x vs. 16x make any difference?

[Bandit1]

I am considering a change in motherboard.It only supports 8x lanes in crossfire.Do it or no?My future plans do include 5850x2 which will likely be the extent of my video setup for a long time..Thanks-

 

[biostud]

~4%

http://www.tomshardware.com/reviews/p55-pci-express-scaling,2517-11.html

 

[faxon]

Unless you're going for an amd CPU I wouldn't let it dictate your mobo choice. While there is a minor performance hit vs x16 it's nothing compared to the gains you get from the second card.

 

[Bandit1]

Thanks for some feedback.I do in fact plan on Amd x6 of some level.

 

[faxon]

In that case just look at getting an 890fx board like the MSI 890FXA-GD70. 44 lanes of PCIe should keep your GPUs happy, and the boards tantalium capacitors feeding the CPU give it amazing voltage stability when overclocking