Thread: crossfire x question 790gx
July 7th, 2009, 01:11 PM #1
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crossfire x question 790gx
i have a biostar TA790gx mobo. with a phenom II 955, im wonderin if my HD4870 crossfire is bottlenecked because of my mobo only supports 8x when in crossfire mode..do i need to change my mobo for the fx boards w/c supports 16x even on CD or is it good in the 8x's?
July 7th, 2009, 01:25 PM #2
its PCIE 2.0 x8, which is equivalent to x16 on PCIE 1.0 (2.0 is twice 1.0 bandwidth per lane) so you should be fine, if there is a bottle neck its very very little. if it was a 1.0 board and running x8 then you might have a problem.
my i7 920 system I'm finally building right now (literally) runs a x8 x8 Crossfire setup too, and have 2x 4870's in there, at least once I get it installed in case and booted up later.i7 940//Corsair H60//EVGA X58 SLI LE//6GB Corsair Vengeance 1600MHz//2x EVGA GTX 560 Ti FPB SLI//NZXT Hale82 850W//CM 690 II Advanced//Win7 64//WD 74GB V-raptor, 750GB Black, 1.5TB Green
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