Wolfshadw :
Upgrade neither. The performance increase you may (or may not) see won't be worth the cost (my opinion).
-Wolf sends
I second this. Am still rocking an overclocked Q9550 with a Radeon HD 6970, playing at 1980x1200, and everything still plays fine.
Some of the latest games will need some settings turned down a bit to maintain high FPS.
The Q9550 has to be the best CPU I've ever owned. It's an amazing chip that just keeps on giving