ASUS GPU Tweak III AlternativesScreenshot Capture Tools & System Information Utilities like ASUS GPU Tweak III

The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.

Comprehensive tool offering GPU overclocking, video and screen capture, and overlays, with support for Nvidia and ATI cards. Features Kombustor stress test, portable use, ad-free experience, manual exclusion of false positives in displays, and multiple video compression options.

RivaTuner is a complete powerful tweaking environment, providing you everything you may need to tune NVIDIA GPU based display adapters. The widest driver-level Direct3D / OpenGL and system tuning options, flexible profiling system allowing to make custom settings on...

CoreCtrl is a Free and Open Source GNU/Linux application that allows you to control with ease your computer hardware using application profiles.

EVGA Precision X1 allows you to fine tune your EVGA graphics card for the maximum performance possible, with Core/Shader/Memory clock tuning, real time monitoring support including in-game and compatibility with almost all EVGA graphics cards.

AgaueEye is a hardware monitor with in-game overlay tools(FPS) for Windows, with AgaueEye, you can monitor your hardware, like CPU/GPU/MB/HDD/RAM states, and display overlay when you playing games, AgaueEye also record the states for post analysis.

EXPERTool™ tuning utility for customized performance enhancements and efficient desktop management.

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.

Open Capture and Analytics Tool. If you want to know how well a game is performing on your machine in real-time with low overhead. It supports all major APIs on Windows – Direct3D® 11, 12 and Vulkan® – and can show an in-game overlay.

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...

A GPU overclocking tool. Low level driver access, core and memory frequency overclocking, monitor and more, SAPPHIRE TriXX is a great alternative to comparable overclocking utilities. Worth a download for novice or enthusiast overclockers.

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.