Hi guys, my brother has an old Core 2 motherboard that he bought off of somebody very cheaply. Since the Q6600 is one of only a few quad core processors that works with the motherboard, he wants to buy mine for $130 and I can get a Q9550 for $170 at a MicroCenter near me. My current Q6600 runs at 3GHz at 1.35 volts under a Tuniq Tower. It has a VID of 1.325v. I play any genre game on my computer and do some lighter video work. Do you think it would be worth upgrading for $40? How high do overclocks usually go on the Q9550? The Q6600 only gets up to 3.34GHz before it starts requiring a lot more voltage.