GPU-Z - GPU-Z is a lightweight system utility designed to provide vital information about your video card...
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.
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
Tweaking.com - Hardware Identify - Tweaking.com - Hardware Identify will help identify unknown hardware on your system. This program does not help you download drivers but helps let you know what the hardware is, so you know what drivers to find.
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.
Neofetch - Fancier version of Screenfetch that displays colors and supports more platforms.