Everyone knows that clock for clock the Athlons do more instructions per second. What's in doubt is the accuracy of how large that clock for clock advantage is! And ChipDeath was right, a 2.4C would compare to an XP 2800+.
Of course we assume that by speed PunJab meant performance. If he meant true clock speed, your answer would be more accurate. But it's less likely that he meant clockspeed than performance.
<font color=blue>Watts mean squat if you don't have quality!</font color=blue>