The AMD Phenom II is a series of multi-core processors developed by Advanced Micro Devices (AMD) that was released in 2009. It is built on a 45nm manufacturing process and supports both DDR2 and DDR3 memory, making it versatile for various computing needs. The Phenom II architecture improved performance and energy efficiency compared to its predecessor, the Phenom series. These processors are known for their unlocked multipliers, allowing users to overclock them for enhanced performance. The Phenom II lineup includes models with up to six cores, catering to gamers and professionals who require robust processing power for demanding applications.