Ryzen Master is a helpful utility for those with AMD Ryzen CPUs, allowing users various overclocking, undervolting, and other performance optimization tools within the Windows environment

1. Automatic CPU overclocking

Overclocking typically involves changing your CPU's default frequency and voltage settings to boost performance. You should also have a capable CPU cooler to handle the additional power and heat generated by the CPU.

2. Undervolting your CPU

Many users prefer to undervolt their CPU instead of overclocking it. Undervolting is the process of reducing the core voltage of your CPU in a bid to reduce the CPU temperature and increase thermal efficiency

3. Eco-Mode for power saving or more thermal headroom

Ryzen Master's Eco-Mode is a handy tool that unlocks a lower or higher tier of TDP on your Ryzen CPU. This benefits both users who want more performance and those who simply want lower power consumption, and hence, lower temperatures

4. Overclocking RAM and enabling EXPO

Ryzen Master doesn't just deal with CPU optimization, it also allows you to overclock your RAM using the Memory Control feature present in each of the four profiles. Depending on your technical know-how, you can choose between a fully automatic or fully manual overclock — the latter would require you to input values for each of the dozens of memory settings it displays

5. PBO for a quick and simple performance boost

Finally, Ryzen Master allows users to enable Precision Boost Overdrive (PBO), a mechanism by which your Ryzen CPU can attain its advertised boost clocks more often and for much longer by tweaking settings such as PPT (Package Power Tracking), TDC (Thermal Design Current), and EDC (Electrical Design Current). It is an automated process that simply needs a few clicks from the user to enable it.

Source - XDA developers 

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