AIDA64 Extreme - AIDA64 Extreme has an equipment discovery motor unrivaled in its class.
Prime95 - Prime95 is a program that searches for new Mersenne prime numbers.
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
HeavyLoad - The individual test methods employed by HeavyLoad can be customized to fit your needs.
Core Temp - Nov 4, 2017 - Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information.
CPU Frequency Selector - Cinnamon CPU Frequency Selector Applet