Conclusion - An Ideal Upgrade CPU
AMD's Athlon 64 X2 5000+ Black Edition comes with one unbeatable advantage that no other AMD processor in recent memory has ever had. This $130 CPU sports an unlocked multiplier, which unlike that of the 6400+, is actually usable thanks to the CPU's enormous overclocking potential.
The unlocked multiplier allows the CPU to be overclocked without forcing the remaining components to operate outside their normal parameters. This means that the FSB, PCI bus and memory all run at their default frequency and voltage.
The 5000+ Black Edition is the ideal choice for users who wish to upgrade their existing AM2 systems. Thanks to its low power dissipation even when overclocked, buying a new cooling solution is unnecessary. Furthermore, the low heat generation also means the system will not become much noisier as a result of your overclocking experiments.