"It would be wise in this case to consider the following: while
saving $40 upfront by buying the 2.2GHz CPU, you are taking a gamble that
you'll be able to achieve a slightly more difficult 36% overclock to reach
3GHz as opposed to the 15% overclock necessary to hit the same speed with
the 2.6GHz CPU. The question you should ask yourself is: would you be happy
with the 2.2GHz CPU if it didn't hit 3GHz, or would you regret not buying
the 2.6GHz part?"