According to The Inquirer, the 2800+ flame will be rekindled with 512K of cache when Barton is released:
So where is the 2800+? AMD suggests that it is about to reincarnate as the "Barton" 2800+, a chip which will include 512K cache on its die.Barton has apparently started sampling, with 2800+ and 3000+ processors on the way, but I have to wonder what kind of clock speeds those PR ratings correspond to. Barton's extra cache should result in better performance, clock-for-clock, which would necessitate a higher PR rating than Thoroughbred Athlon XPs.
That is slated to arrive in the first quarter, but we've got quite a few weeks yet before that is ready to roll.
In the end, significant volumes of the Athlon XP 2800+ we reviewed more than three months ago may never be readily available to retail customers. The 2700+ is widely available, but the absence of AMD's fastest processor can't be helping the company's average selling prices.