Best CPU for dual HD 6990s

Stan50

Honorable
Mar 14, 2013
3
0
10,510
Hi there.

I am not happy with the current performance of my 2x HD 6990 crossfire rig. I have found no difference from using one or two of the cards together when playing games (having used drivers and cap profiles). I am therefore assuming my Phenom 1100t processor is a bottleneck. As such, I would greatly appreciate some advice on my planned investment in either i5 2500k or i7 3930k cpu (but also open to suggestions).

My current PC Spec:

AMD 1100t cpu
Asus Crosshaire V Formula mobo
1200 Corsair PSU
14GB DDR 3 Corsair Dominator GT memory
2 x AMD HD 6990 Graphics

PS: Although I use my pc predominately for gaming, I also like to have many programs running in the background whilst gaming, such as multiple tabs open in my web browser; and I mention this as the i5 2500 k is a quad core processor, and I don't want to lose performance on other applications.

Any advice would be greatly appreciated. Thanks.

 

pete123edgar

Honorable
Feb 8, 2013
305
0
10,810
since you are using a amd processor, go with amd but if you are willing to change mobo too than the 3570k is great. 6990 cf is overkill for most game if you are on a 1080p btw, just like a titan, 2 gtx titan is good but when you got 3, performance increase decrease or it can even decrease your performance.
 

Stan50

Honorable
Mar 14, 2013
3
0
10,510


I upgraded my memory with 3 x 4GB modules and had 2GB remaining from my previous setup