I have my QX6700 overclocked to 3.2 on water cooling. What kind of performance increase will I see by moving up to QX9650 OC? I paid 1k for the QX6700 a couple of years ago which is about what the QX9650 is going for now. Worth the upgrade?
To be frank, no. You spent 1000 on that chip because it could last a long time, and it will. Theres very little games that would benefit from a performance increase in that upgrade, and the QX6700 should last until early next year. Wait for i7.