3DMark2006:

QX6850 @ 3000MHz:


QX9650 @ 3000MHz:


QX9650 @ 4000MHz:


A 90 point overall score difference between QX6850 and QX9650 is not very impressive, but you see the CPU-score increased quite nicely. When the QX9650 is overclocked you get an impressive boost of the CPU-score, but only a mere 375 more points; this is expected, because the bench test focused mostly on the graphics card.