FPS Monitor!

Fraps is a universal Windows application that can be used with games using DirectX or OpenGL graphic technology. In its current form Fraps performs many tasks and can best be described as:

A powerful overclocking tool for your graphics card, which also includes screen capture and video capture tools, plus overlays. Has a lower FPS hit than Fraps, and offers the same functionality. The beta versions include audio streams alongside the video capture.

The future is now with EVGA PrecisionX 16. This software allows you to fine tune your NVIDIA graphics card, including GPU Clock Offsets, Memory Clock Offsets, Fan Speed, voltage and much more. This latest version of PrecisionX has been revamped with a new GUI, new OSD (On-Screen Display) features, improved voltage and pixel clock control, integrated Steam Achievements and more. True enthusiasts know to go with the number one choice for GeForce overclocking; EVGA PrecisionX 16.

AgaueEye is a free hardware monitor for Windows, you can see your CPU/GPU/MB/HDD/RAM state in desktop or overclock your GPU, AgaueEye also support in-game overlay for popular games, so you can monitor the hardware state in games(over 3000 games supported now), then inspect the performance.

Corsair Link Dashboard software allows you to monitor your system and gives remarkable control over your case fans, lighting, and compatible Corsair power supplies and Hydro Series liquid CPU coolers that work together for optimal cooling and performance.