Core Temp

HWMonitor: Monitors various sensors on your motherboard, including CPU temperature. Open Hardware Monitor: Provides real-time information about your hardware, ...

Solid vote for HWInfo. It gets frequent updates for new processors and improved readings, has a lot of sensors none others do (it even shows Ryzen sleep state ...

Argus Monitor only displays one temperature graph for all CPU cores; the overview tab shows all CPU cores having the same temperature.

The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer. Downloads · Screenshots · Release Version 0.9.6 · Documentation

Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information.

AMD Ryzen Master has you covered with both real-time monitoring and a histogram of per-core clock rates and temperature, including average and peak readings.

AMD Ryzen Master Utility: It's a nifty program created by AMD that is able to monitor and even overclock your Ryzen CPU through software.

If you need to check CPU and GPU temperatures, you can use software like Open Hardware Monitor or CoreTemp (both are free to download and ...

AMD System Monitor - a free and lightweight tool AMD gives out. Monitors % usage for CPU cores as well as GPU!

Use HWinfo64. Besides the main monitoring window, you can have it show any temperature reading you want in the system tray, set up alerts, colour-code, etc.