Yes. It's true. Overclocking doesn't just mean tinkering with your CPU. Other avenues exist if you're keen to shove the boat out a little bit more. RAM speeds over the course of the last few years ...
CPU Ratio: This is your main, and largely only, means of adding extra CPU frequency. Because the Base Clock is 100MHz by default, it's easy to calculate that a 45x multiplier will give you a 4.5GHz ...