980x at 3.3 enough for 2 6990's

[pnico]

hi,
does anyone know if the 980x at 3.3 with 12 gig of ram is enough to feed 2 6990s?
if not is there an easy way to overclock this even more?

 

[purple stain]

For x2 6990's you need a 4ghz+ processor or else it will get severely bottlenecked.I've seen people hit 4ghz with the 980x but you will need a good cooler to get there.And I think you will need more than 4ghz to not get bottlenecked.

 

[inzone]

I have the same cpu and I have 3 GTX 580's in 3-way SLI and no problem , that cpu has an unlocked mulitplier and can easily be overclocked especially if you have a good overclocking friendly MB.

 

[pnico]

I have an asus board.. not sure which version it is..would have to look. Im guessing that this cpu can be overclocked easily then, right?

 

[purple stain]

Actually after looking around it seems that with a i7 965 @ 3.8ghz they weren't bottlenecking at all.So aim for 3.8ghz.More is preferable.

See the difference...

i7-920 @3.8ghz

http://www.techpowerup.com/reviews/Powercolor/Radeon_HD_6990_CrossFire/4.html

i7 965 @3.7ghz

http://www.guru3d.com/article/his-radeon-hd-6990-crossfire-review/20

 

[pnico]

I have the asus p6t deluxe v2 board.. if that tells you guys anything..

 

[purple stain]

What type of cooler do you have?

 

[pnico]

its liquid cooling.. it was originally an alienware system

 

[purple stain]

Well you should be able to get it far enough with that.Like those benchmarks show you don't actually need to clock it that high like I first thought.

 

[pnico]

thanks for that info! I appreciate it..

 

[megamanx00]

Why wouldn't you overclock it 😵