The Forceware 90 drivers feature an entire new control panel with NTune integrated. The new Forceware 90 drivers will still allow you to use the classic NVIDIA control panel if you please, but they offer many new options that seem to simplify things. The new control panel allows you to do things like controlling system voltages from within windows. It also features a fan speed controller, a system temperature monitoring program and it has a built in stress test. Both the fan speed controller and temperature monitoring go further then the graphics cards alone, they extend out to other parts of your system.



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Source: techPowerUp! - Peek into the Future of NVIDIA Forceware Drivers
Main Source (including a series of pics): VR-Zone - Forceware 90 Early Look