CPU-Z is a freeware system profiler application for Microsoft Windows that detects the central processing unit, RAM, motherboard chipset, and other hardware features of a modern personal computer, and presents the information in one window.
CPU-Z is more in-depth in almost all areas than the features that a Windows OS provides to identify various hardware components, and is thus needed to identify certain components without opening the case, especially the core revision and RAM clock rate. It has an unusual ability to directly detect hardware features, especially the ability to access, read and display the SPD data from memory modules. The ability to document clock speed makes it an important tool for motherboard overclockers, as a way of proving the CPU speeds achieved by various experiments.
- CPU: Name and number, Core stepping and process, Package, Core voltage, Internal and external clocks, clock multiplier, Supported instructions sets, All cache levels (location, size, speed, technology).
- Mainboard: Vendor, model and revision, BIOS model and date, Chipset (northbridge and southbridge) and sensor, Graphic interface.
- Memory: Frequency and timings, Module(s) specification using SPD (Serial Presence Detect) : vendor, serial number, timings table.
- System:Windows and DirectX version.