At AnandTech they did not have the exact same processors you metion to compare. But the next bump up in each category looks like this:http://www.anandtech.com/bench/Product/23?vs=97
Depending on the main use for the PC, maybe it will help you decide. Myself, I'd rather have the newer, speedier, slightly cooler Phenom II for gaming... by a tiny margin. In reality, I doubt he'd see the difference with an adequate gfx card. And for web surfing, it won't matter.