Phenom II is a series of microprocessors developed by AMD (Advanced Micro Devices) that was released in 2009. These processors are based on the K10 architecture and are designed for desktop and laptop computers. They offer multiple cores, ranging from dual-core to six-core configurations, which enhance multitasking and performance in various applications. The Phenom II series supports DDR2 and DDR3 memory, providing flexibility for different system builds. It also features technologies like Turbo Core, which allows the processor to automatically increase its clock speed under certain conditions, improving performance for demanding tasks while maintaining energy efficiency.