crossfire x question 790gx

[jprovido]

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?

[ShyguyXPC]

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.