RivaTuner!

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.

A tool for reading all the information the graphics card from the NVIDIA drivers and overclocking. Actually, it should only be a tool to allow more detailed dumps of NVIDIA graphics cards to the GPU to improve Observer gadget. It is now but a lot more to come so that I would put it to you as a standalone tool. All data and functions of almost 1:1 comes from the NVIDIA driver. So if something does not work, this is also a limitation to 99% of the NVIDIA drivers.Functions that go beyond the capabilities of the NVIDIA driver, it will not be using this tool. It is therefore not "real" voltage-sensor evaluation on display through I2C etc. »

GLXOSD is an on-screen display (OSD)/overlay for OpenGL applications running on Linux with X11. It can show FPS, the temperature of your CPU, and if you have an NVIDIA graphics card (with proprietary drivers), it will also show the temperature of the GPU. Also, it can log frame timings, which is useful for benchmarking.

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.

ASUS GPU Tweak fully implements TechPowerUp’s GPU-Z analysis and monitoring features. Sliders and hotkeys let the user adjust core and memory clocks, core voltage and fan speed. Drivers and vBIOS can be automatically live updated.

PowerStrip provides advanced, multi-monitor, programmable hardware support to a wide range of graphics cards - from the venerable Matrox Millennium I to recent AMD Radeon graphics. It is the only program of its type to support multiple graphics cards from multiple chipset vendors, simultaneously, under every Windows operating system from Windows 95 to the x64-bit edition of Windows 7. A simple menu that pops up from the system tray provides access to some 500 controls over your display hardware, including sophisticated color correction tools, period level adjustments over screen geometry, and driver independent clock controls. A powerful application profiler can detect when programs are launched and respond by activating specific display settings, gamma adjustments, performance switches and even clock speeds - returning everything to normal when the program closes. In-game gamma hotkeys let you light up the darkest hallways during game play, and hardware control over refresh rates - with floating point precision - ensure you're never stuck at just 60Hz no matter what OS you're using. A quick setup wizard gets you up and running with minimal fuss, extensive context-sensitive help is available for all controls, and live updates are supported to ensure you're always running the latest release. Finally, an assortment of system and productivity tools - among them, extensive diagnostics, PCIe and AGP device configuration, EDID decoding, desktop icon management, a system idle thread, Windows resource monitoring, an anti-burn-in orbiting option, physical memory optimization, an on-screen display, and the most advanced monitor support in the industry - round out the compact 1MB package. »

Radeon Profile Tool, or RadeonPro for short, is a free, user friendly utility designed to unleash the power of AMD™ Radeon™ video graphics cards. RadeonPro applies user defined profiles upon game start, automatically.

This tool is developed by Ray Adams. ATI Tray Tools is a Full Featured Radeon Tweaker that can be found in the windows tray which then allows instant access to options and settings. Quite handy and quite a small download. Just click the executable and you are good to go.

Program capable to modify on-the-fly the Intels Graphic Media Accelerator (currently 945GM/GME/GMS/GSE and 943/940GML/GU Express featuring GMA 950) clock. Available frequencies are 200, 250, 400Mhz.

EXPERTool™ tuning utility for customized performance enhancements and efficient desktop management.EXPERTool™- Gainward’s award winning

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.

Used to alter clock speed on NVIDIA graphics cards.

NVTray provides some extra quality tweaks that both the default NVIDIA tray icon and control panel are lacking. I especially wanted to be able to select more Antialiasing modes, as well as OpenGL and Direct3D options right from the tray icon. Also, the utility is able to run automatically at startup thus making it a bit easier to change my settings before playing a game or running a benchmark

The AMD Catalyst Control Center allows you to control every aspect of your ATI graphics card, quickly and easily. You can quickly add and configure additional displays to your GPU, make your games look better and run faster, enhance the quality of playback of your movies and online video content, overclock your GPU, and unlock new features and improvements.