No, it's not.
Different [processing] approaches to the same [x86] architecture, remember?
Aha! The clock-race may be on hold; but the clock-raise is on, alive & well!
First, POWER6, 4 to 5GHz; now AMD... who's next?
Of course, a bunch of features doesn't make a BMW run faster. One wouldn't want a processor spelling v-i-r-t-u-a-l-i-z-a-t-i-o-n t-e-c-h-n-o-l-o-g-y, while waiting for the 32nd core to take over & load Mac OS XXI & Windows Déjà Vista, the week after, right?
Long live the heat... humm, clockspeed!