Choosing the right CPU for your needs isn’t always an easy task. If we all had bottomless wallets, it would be easy just to pick the ultra-high end CPUs and be done with it. But most of us have to budget our purchases, and it’s always a delicate dance to figure out what’s the best fit for what you do. Also, the CPU isn’t the only piece of the puzzle. Rather, it’s a shifting matrix of choices we make. If I’m a gamer, do I step down one notch in CPU power and pick up a slightly faster graphics card? If I’m a video editor, will running a faster CPU make up for somewhat smaller storage? If I’m an average PC user, would more memory be more useful than a faster CPU?

This balancing act is difficult to perform in the absence of data. Today, we’re taking a look at the CPU side of the equation. We vary the processor, but keep everything else in the system as constant as possible. The key difference is core logic and processor, which are inseparable.

We took a look at the performance of the high-end processors in our initial review of back in July. Later, Jason Cross went in-depth on the gaming side, pitting the Athlon 64 X2 5000+ against Intel’s Core 2 Duo E6600 in our . Now we dive back into our comprehensive benchmark suite, running a wide array of performance tests across the entire range of Intel Core 2 Duo and AMD Athlon 64 X2 AM2 processors. AMD has the price edge, but is that enough to overcome Intel’s performance lead? How well do the various CPUs scale across the product line? We try to address those questions.