Mac OS X Softwares to CPU Monitoring

GKrellM is a highly customizable system monitor for multiple operating systems. It provides a compact, stackable interface displaying various system data like CPU load, memory usage, network activity, and more, making it a favorite for users who need detailed system insights without a heavy footprint.

GeekTool is a powerful macOS application designed to enhance your desktop customization by displaying various information directly on your background. It allows users to run shell scripts, display media, or show file contents through 'Geeklets,' effectively turning your desktop into a dynamic dashboard of system data and other relevant information.

iStat is a comprehensive system monitoring tool for macOS, residing conveniently in your menubar. It provides a real-time overview of your system's performance, including CPU, memory, disk usage, network activity, temperatures, fan speeds, battery status, and more. With detailed graphs and configurable options, iStat empowers users to keep a close eye on their Mac's health and performance.