Rainmeter - Rainmeter is a desktop customization platform.
MSI Afterburner - Tool to manage video cards. Shows video card stats (temp, GPU usage, etc.).
Real Temp - Real Temp is a temperature monitoring program designed for all Intel single Core, Dual Core, Quad...
ASUS GPU Tweak - ASUS GPU Tweak fully implements TechPowerUp’s GPU-Z analysis and monitoring features.
NZXT CAM - CAM is a piece of software that was designed by NZXT, one of the industry leaders in the world of gaming PC production.
Guru3D - Guru of 3D: PC Hardware Reviews and tests