It's all the same as that Intel CPU that had to be liquid nitrogen cooled and OC'd to 5.2GHz to beat out the FX-55...."IT STILL WON' yeaaaaah, and it only had to be OC'd to a point where 99% of people will never get it to....not to mention even then it still lost benchmarks.
Like I said, the only reason they show the overclocked CPU is to show you what it takes to beat out the stock AMD.
No corporation whos going to use those dual core processors are going to overclock them, so thats not a real world win.
As the article even said:
a system from AMD using the X2 4800+ bested an Intel-submitted PC with the Pentium Extreme Edition 840 (PEE 840) on every one of CNET Labs' dual-core benchmarks
That sums it up nicely right there