AMD has officially dropped prices of its processor lineup but AVault was able to get their hands on some inside information from AMD. It's a document which shows AMD's processor pricing for Q1 2006 and it also indexes the upcoming AMD Athlon 64 X2 5000+ and the Athlon FX-60 processors.
If you look at the dual core Opteron processors that are available today you see the naming scheme goes by fives, 260, 265, 260, ect. For AMD to release a dual core FX chip it would make sense to bring it out in increments of five and FX-64 just does not have the same ring to it as FX-65. I can only assume that if FX-60 is not dual core then FX-65 will be.
For the 5000+, it is almost guaranteed to be a 2.6 GHz product. Those luck few I know running 4800+ processors are all reporting overclocks above 2.6 and doing it on the stock coolers with minimal effort.
The Athlon 64 X2 5000+ will start selling for $1,083 and the FX-60 will retail for $1,238 in the first quarter of 2006.
More info at Avault.