Isn't the fx series better ? Ie is an fx-57 faster than a 152
The FX-57 runs at 2.8GHz core clock
The Opteron 152 runs at 2.6GHz core clock
The FX-57 is probably a bit faster.
The Opteron 154 runs at 2.8GHz core clock and should be about as fast or slightly faster than the FX-57.
Both the FX-57 and the Opteron series are very high quality parts but the Opteron may be marginally better. Both are rumored to OC well.