CPU-Z
FreeCPUID
- Category
- System tools
- Version
- 3.01
- Manifest checked
- 2026-10-23
- Size
- ~5 MB
- Licence terms
- Free for personal use · check terms for business use
- Supported OS
- Windows 11 · 10
- Install method
- Automatic install supported
- Developer
- CPUID
- Downloads via this site
This links to CPUID’s own download source. AfterFormat neither stores nor modifies installer files.
What it is
A system information tool from CPUID. It reports the CPU model and the clock speed it is actually running at, the motherboard chipset, memory specification and timings, and graphics card details on one screen. It is also widely used to check that a second-hand PC matches its advertised specification.
When to pick this
To confirm a PC’s specification or check compatibility before adding RAM. For storage lifespan, use CrystalDiskInfo.
Details
Memory specification
The SPD tab shows manufacturer, capacity and speed per RAM slot — the basis for choosing a matching module when adding memory.
Real clock speed
It shows the clock the chip is running at right now, not the number on the box, which tells you whether heat is throttling performance.
Benchmark
Produces a simple CPU score you can compare against other processors.
After a reformat
Install and you are done
It reads hardware information and has no settings. A ZIP version runs without installing.
Distribution
- winget ID
- CPUID.CPU-Z
- Redistribution policy
- Permission required
- Manifest checked
- 2026-10-23
- Official site
- https://www.cpuid.com/softwares/cpu-z.html
The date the version and installer URL were checked in winget. This is separate from a usage-terms review or an installation test.
Original winget manifest