How much of a bottleneck should I expect when using 2x 5870's in crossfire with a Q9650 @ 4ghz?
I know I can expect some, but I am wondering if it would be worth the 400-500$ investment sandy setup sooner rather then later?

This would be in comparison to a sandy 2500K in the 4-4.4 ghz range. All at 1900x1200.

I will upgrade eventually anyway, but if the performance gap is significant enough I will upgrade sooner.
I have found some reviews on the web, but they all used the older Kentsfield based quads and not the Yorkfield ones, and show some suprising numbers such as a e8600 beating a q6700 with crossfire'd 5870s.


Can anyone she some light on this? Hopefully somethat that has made a similar upgrade (q9650 to 2500k)?

Thanks!