CPU-Z - CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels.
Geekbench - Geekbench 4 measures your hardware's power and tells you whether your computer is ready to roar. How strong is your mobile or desktop system?
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
UserBenchMark - Test, fix and upgrade your PC's performance.
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.
3DMark - 3DMark includes everything you need to benchmark your hardware in one app.