According to AMD's latest roadmaps, we should see the first 65nm "Altair" desktop processor (based on their next-gen K8L architecture) to arrive sometime in Q3 2007. This being a quad-core chip set to debut at speeds ranging from 2.7 to 2.9GHz on a 4GHz HyperTransport bus and 512KB of L2 cache per core.
For full details, head over to HKEPC folks.
AMD just released the roadmap for Desktop processors which tells more about the next-generation K8L architecture based Altair, the first AMD's Quad Core to be available in 2007 Q3.
Quad-Core Altair will be the AMD's most powerful desktop processor. With 65nm SOI technology, there are Athlon 64 FX and Athlon 64 X4 versions. The Athlon 64 FX one is designed for performance enthusiast with 4x4 platform supported, while the Athlon 64 X4 one targets for the mainstream segment with SMP (Symmetric Multi-Processor) technology.