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Can I Crossfire on Gigabyte GA-MA78G-DS3H?

BUCK NASTY

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#1
This board has one PCI-E 2.0 x16 and one PCI_E x4 slots. Would cross-firing 2 HD3870's be a waste on this board? I'm thinking I may have to dump this board for the 790 chipset.
 

BUCK NASTY

F@H Mod & 4P Enthusiust
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#3
Anybody know the performance factor of the x4 slot?
 
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#4
ATi cards dont lose that much performance at lower bandwidths. 8x only loses a few percent and 4x loses about 15-30%.
 

newtekie1

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#5
The x4 slot shouldn't give a noticeable performance hit, a measurable one certainly, but nothing actually noticeable.
 
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#6
For a 3870, it won't be a waste. For a 4870, it will.