Motherboards published a Intel Core 2 Extreme QX9770 review.

Quote from the review: "Performance on the QX9770 was exemplary, easily the fastest CPU or system I have ever tested with the exception being the dual QX9775 SkullTrail system which is faster, but of course that is with two CPUs that are virtually identical to the single QX9770 here. The QX9770 easily beats the Phenom X4 9850 CPU, but the two CPUs are in completely different price leagues and not a fair comparison as the person wanting a QX9770 will not likely look at an AMD CPU for their high-end computer.
The extra L2 cache really shines in applications and games. As our main video gaming test CPU, the QX9770 when combined with a high end dual card like the 9800GX2 or HD3870X2."
Read the full review on Motherboards.