The last thing any user needs, especially those who enjoy high-profile titles on their computers, is a spontaneous loss of performance caused by the processor. From excessive temperature to power configuration issues, there are plenty of reasons why a CPU slows down. In short, if your PC suddenly slowed down and you suspect the processor is to blame, you should first download two essential allies: CPU-Z and HWiNFO.
Now, I imagine some readers might wonder why I don't recommend the Task Manager in Windows. After all, that part of the operating system reports both CPU usage and its frequency. The problem (for a change) is Windows itself, with particular emphasis on Windows 10. Complaints about incorrect frequencies in the Task Manager have multiplied across the web, and the general recommendation is... ignore it. So, if your PC's CPU is slowing down due to an external factor, you need an accurate report, updated in (almost) real time. Our first choice is CPU-Z.
CPU-Z
The latest available version of CPU-Z is 1.85, and its support ranges from Windows XP to Windows 10, though an earlier build for Windows 98 is still available on the official page (if you overclock retro systems, it will be very useful). Everything related to the CPU and its clock speed is shown in the main tab. Any sudden change in the bus speed or multiplier will be recorded immediately. If you want to see information for another core (Core 0 is the default), just right-click on the word "Clocks". Another relevant section to check our system's status is "Memory". There we can see the memory frequency (remember to multiply by two!) and the main timings. RAM frequency is very important on Ryzen systems, and if it hasn't been properly configured in the BIOS, you'll lose performance.
HWiNFO
Finally, the heavy artillery comes in the form of HWiNFO. The official page offers portable versions, conventional installers, and even a build compatible with DOS. Open the program, check the "Sensors Only" box, and look for the section dedicated to your CPU. Everything HWiNFO can detect about it will appear there. Frequencies, voltages, usage percentage, maximums, minimums, averages... if the processor is throttling like crazy, has temperature issues, or something is eating it raw in the background, HWiNFO should be able to see it. Both programs are free, and they don't bring background gifts.
