Bulldozer-based Opterons will emerge on September 26 according to this report by PC Magazine. Citing a source familiar with AMD's roadmap, PC Mag says both Valencia and Interlagos versions of the new architecture will make their debut next month. Valencia is an eight-core design that will likely be very similar to desktop versions of Bulldozer, code-named Zambezi. Interlagos is more of a beast, packing dual eight-core dies on a single package.
Valencia and Interlagos will reportedly be known as the Opteron 4200 and 6200 series, respectively. PC Mag reckons we'll see six- and eight-core 4200-series processors and 12- and 16-core flavors of the 6200 series. The 6200-series chips should work in systems with up to four sockets, while the 4200 series will be limited to single- and dual-socket mobos.
AMD has yet to confirm when the first Bulldozer-based processors will be available, but their release is surely drawing near. It'll be interesting to see which market gets its first taste of AMD's new hotness. The K8 architecture that has powered the last few generations of AMD CPUs first arrived in Opterons before migrating to the desktop in Athlon garb.