I found this great paper on the AMD processor roadmap in HP Proliant servers.

Since 1996, HP and AMD have collaborated to provide high-performance, energy efficient solutions that deliver quality, variety, and value in industry-standard servers. This collaboration includes the adoption of the latest Multi-Core AMD Opteron? processors. This Technology Brief discusses current and near future AMD Opteron? processors and the evolving AMD Opteron? processor microarchitecture.

Find the paper here.