It's becoming obvious that AMD is not going to be able to field a competitive desktop quad anytime soon. They need 3.2-3.4GHz to be more or less even with a Penryn. Even if you believe the current AMD roadmaps, they're not even promising that. If you're shaking your head at this, consider this. A couple weeks from now, AMD is going to release its slow Phenom X4s. A 2.4GHz Phenom X4 is going to get beaten like a rented mule. The Penryn 3GHz will beat it all the time, the fastest Kentsfield will beat it almost all the time, the fastest Intel duallies will beat it on the large majority of non-quad sensitive benchmarks, even the fastest X2 duallies will beat it for the same.

http://www.overclockers.com/tips01240/