Speccy

Speccy is a program similar to AIDA64, but free.
Indeed, this program created by Piriform will let you know all the necessary information about your computer (hardware and software).

Speccy lets you know the information about :

• your operating system : version, architecture, serial number, ...
• your processor (CPU) : brand (Intel or AMD), model (i3, i5, i7, ...), the processor speed (in GHz) as well as other information.
• your memory (RAM) : quantity (in MB or GB), number of RAM sticks, ...
• your otherboard : brand, model, ...
• your graphics card
• your network card (often built into the motherboard)
• your hard drives, and other types of devices.