Haha, clock speed isn't everything my friend.
You see the Core 2 Duo E6600, with that oh-so-shitty 2.4Ghz? Yeah, well that piece of fine ass hardware can perform just as well as AMD's top processor, the FX-62 for less.
Suddenly that clock speed ain't so shitty anymore, huh?
It's all in the architecture and how the processor is designed. Don't let paper facts fool you.
Those prices are USD.