Second-generation AMD Opteron processors with direct connect architecture introduce several features including quad-core upgradeability, AMD Virtualization (AMD-V), and energy efficient DDR2 memory. In addition, second-generation AMD Opteron processors are designed to advance AMD's performance-per-watt capabilities and leverage the proven technologies.Second-generation AMD Opteron processors with DDR2 memory extend the industry-leading performance trajectory established by first-generation AMD Opteron processors while offering a seamless upgrade path to quad-core performance and leading-edge solutions to help run your business applications.AMD Opteron processors feature a common core architecture that is consistent across 1-way, 2-way, 4-way, and 8-way systems and is also consistent with previous AMD Opteron processors, helping minimize the cost of transition and maximize past investments in software optimization.