Originally Posted by Berke53
I know.. another of these bottleneck topics. Well the thing is, I searched the whole net about whether 2 6870's in crossfire will bottleneck a Phenom II 965BE and everywhere I look peaple say the exact opposite of eachothers.
- Some say it won't be a bottleneck at all as long as you use high resolutions etc.
- Some say it will be bottlenecked a little.
- Some say it will be severly bottlenecked and that I won't get acceptabel SLI performance
. (Some even say that even 1 HD6870 will be bottlenecked by a 965BE.)
Now I already know that it has a lot to do whether the game is CPU or GPU intensive and at wich resolution and graphical settings you play.
But I really wan't to know if it is wise to buy a second 6870. Let's say for Mostly GPU intensive games like crysis or BF3?
Also when u reply can u please post some proof
with it because I was told many things already that contradict eachother. I really wan't to know the truth now.
I'm running my 965BE at 4ghz and 2.6ghz NB. I use a resolution of 1920 x 1080 in almost any game.
Thanx on advantage
I think you can safely toss the advice about "not getting acceptable SLI performance" for crossfire 6870s in the toilet.
I can tell you this: I have the little brother of the 955 and am Crossfiring the little brother of the 6870: two 6790's (same Barts GPU as 6870) in Crossfire and there is never a time that I hit 100% CPU usage gaming with my 555.
Edit to add: Just to explain what I mean, your 955 should have around +100% performance compared to my my 555 depending on your OC, and the Crossfire 6870s will have about +25% performance gain compared to my 6790's. I am nowhere near bottlenecking my GPUs, so you should have even more headroom than I do.Edited by Jagged_Steel - 3/20/12 at 6:42pm