Free memory tweak software for windows

Most drivers have registry settings that don?t come with a user interface for you to use. These entries are meant for oems to change defaults in reference drivers, for internal trouble shooting, future functionality not yet implemented or settings removed to get Microsoft?s approval. This is not acceptable to your typical computer geek.
How would you like to be able to just edit a few text files or edit the registry and have a new display properties page with a gui for all the cool settings you have discovered? How about a control panel? Or integrated with Desktop Manager? Or as a standalone program running from the taskbar? You can do all 4 of them at the same time with Registry Tweak.

Memory Smiley is a free widget that changes his mood as your memory usage changes.
Memory Smiley widget displays, right on your desktop, various smiley faces deppending on the memory usage.

See the art of a danish painter and have fun at the same time - play memory.

Rage3D Tweak is a multi-language Radeon Tweaker designed to fit right in with the other ATI option tabs in the Advanced Display Properties accessed through the Control Panel.
It allows access to Registry Tweak options, Custom Display Modes, Refresh Rates, and Overclocking all through an easy to use interface.
For those requiring instant access to all the tweak options, a handy icon on the task bar can be enabled for quick access to all three tweaker tabs. Comprehensive html, outline based help is available through the standard ? icon in the display tabs and the help button.
Features:
- Tabbed interface accessible through display properties or system tray for easy navigation.
- Full right-click context sensitive help as well as html outline based help.
- Core and Memory overclocking support for all Radeon series cards.
- Support for per-game profiles and per-game clock speed settings.
- Refresh rate force capabilities for standard and custom display modes.
- Multiple skin options for the tweaker.
- User configurable sound events for GameUtil functions.
- Extensive list of tweaks for 2D and 3D as well as display, multimedia, windows and more.
Enhancements:
- Added support for 9800 series and other new cards
- New Overclocking updates
- New GameUtil support - Now some clock-locked cards can be overclocked without a bios flash.

iStat memory is a free and simple Widget to monitor memory usage with a striking design and two different views.
Switching between the simple and advanced views is merely a matter of clicking on the dials centre.

We think this is one of the best GeForce tweakers available.
Changes in Current Version:
- Fixed GTU not showing the Z-Occlusion-Culling box with >23.xx drivers
xed mixed on/off states for Z24Enable & ZCompressEnable
- Modified largefont settings
- New program icon
- Overclocking should work with 27.xx drivers
- Bugfix at twinviewdisabled for 27.xx drivers fixed
- Added possibility to change TextureLevelOfDetail in OpenGL
- OpenGL FSAA fix
- Helpfile integration is finished