The K10 microarchitecture is a CPU design developed by AMD that was introduced in 2007. It is based on a 65nm manufacturing process and supports the AMD64 instruction set, allowing for 64-bit computing. The K10 architecture features a dual-core and quad-core design, enhancing performance for multi-threaded applications. K10 processors include the Phenom series, which was aimed at desktop and server markets. The architecture incorporates a shared L3 cache and improved power management features, making it more efficient than its predecessors. Overall, K10 marked a significant step in AMD's efforts to compete with Intel in the CPU market.