The only advantage the Phenom 9650 holds is the L3 cache which the Athlon II X4 620 doe not have. Higher clock speed + L3 cache does benefit gaming. The Phenom 9650 costs $109.99. The Phenom II X3 720 is available for less than $10 more. It has a higher L3 cache than the Phenom 9650 and a much higher clock speed. I would suggest that you look into the X3 720 or else stick with the Athlon II X4.