I've always used Intel CPUs in the past, but now I want to switch to AMD because I've heard they're better for gaming. Problem is, AMD chips are faster at a given clock speed than Intel processors, and I don't have any idea how to compare them. If an Athlon 64 3700 San Diego runs at 2.2 Ghz, what would its Intel competiror be? Would it be faster than a 3.2 GHz P4 Prescott?