Asus m5a 970 or 990fx

just a quick question.

m5a99fx pro 2.0 or the m5a97 evo 2.0

 

planning on crossfire and oc it to 4.5-4.8ghz.

 

 

crossfire = 990fx

+1 all day to that.

Asus M5A99FX pro R2.0 for crossfire indeed, reason: the 990FX has 40 pci-e 2.0 lanes.  you can run a CF setup at 16X.

M5A97 evo R2.0 only has 2 pci-e 2.0 slots running at X16 and X4.

both cards on 16x or both cards on 8x?

You could also get the Gigabyte GA990FXA UD3, a very good board as well.

I have the m5a99fx and the guys above are right for crossfire go 990fx it gives you x16speed across 2 pcie slot

thanx. did you oc your cpu with it? ifso howmuch?

Top x16 bottom x4 I have 2 7950s on the m5a 97r2 and wish I had the 990 pro. It works but there is a bottleneck. MOBO and cpu( I have a [email protected]) are my next upgrade, I'm waiting to see what AMD does next.

That board will handle anything the cpu can.