AMD Ryzen Master is a tool that provides advanced and real-time control over the system performance for AMD Ryzen processors. It allows for customizing and adjusting the CPU frequency above or below the default value, making use of the overclocking potential of Ryzen processors. Compatibility depends on the motherboard and processor, and may vary. The overclocking mode activation is done manually and can be reversed by restarting the system. In summary, AMD Ryzen Master offers a precise way to optimize system performance with unlocked Ryzen processors.