Assuming the rest of your system is up to snuff... Maybe, but probably not much of a hindrance. You could benefit from a mild overclock to get from 2.83GHz to somewhere over 3.5GHz (there are reports of the Q9550 OCing to 3.8GHz and 3.9GHz). The OC would stretch your LGA775 system a bit further before needing to consider a replacement build. Be sure to add an aftermarket CPU Cooler (the Hyper 212 Plus is a good cooler).