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[ask]cross fire on fatal1ty z77 performance

thewalker

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#1
hello there . . .i've question . . .i just bought the z77 fatal1ty by asrock ,on manual book have note specification

1 x PCI-E 3.0 x16 (x16 mode)
1 x PCI-E 2.0 x16 (x4 mode)

and i'll cross firm my amd graphic . . .the question is ,if i configuration 2 GPU AMD . . .it the ,mode it will be x8 x8 or x16 x4 . . .and what the effect if x16 and x4

sorry for my bad english
thank you
 
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#2
Specs say 2 x 16X in diual config both run in 8x. Thre is little difference in 8x to 16x as far as performance. You don't use all the bandwidth so 8x works just as good.
 

thewalker

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#3
Specs say 2 x 16X in diual config both run in 8x. Thre is little difference in 8x to 16x as far as performance. You don't use all the bandwidth so 8x works just as good.
but . . .on the 2th slot just have x4 mode ,it will be going to x8 if i config dual GPU ???:confused:
 
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thewalker

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#5
mine is performance sir ,not profesional ,i just have 2 PCI-E x16 with 3.0 x 16 (x16 mode) and 2.0 x 16 (x4 mode)
 
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#6
The 2 x PCIE 16x runs in 8x in dual config, the others run in 4x.


Edit:



I see yours has 1 x 16x so you would be 16x and 4x. my bad
 

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#8
It's not ideal for CrossFire. Not saying it won't work...
 

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#9