NVIDIA BIOS Editor
Change hidden features, sign-on message, etc. on Nvidia cards. NVIDIA BIOS Editor (NiBiTor) enables you to change the sign-on message text & color, GPU & memory clocks, hidden features like SBA (Side Band Addressing) and much more. NiBiTor is the original and defenitive BIOS tweaker that supports the latest NVIDIA graphics cards. NiBiTor allows graphics card enthusiasts to have full control over advanced features and functionality found on firmware of supporting cards. And this to gain some extra performance, enable certain hidden features and get extra stability on the NVIDIA based graphics cards.
CUDA Visual Profiler
A useful CUDA tool from NVIDIA. CUDA Visual Profiler is a dedicated tool for working with NVIDIA GPU cards and with the dedicated toolkit.