Nvidia Inspector doesn't stay resident in memory once your changes are made. This straightforward approach means everything from driver options to crazy clock speeds are in easy reach, controlled by simple sliders. Moreover, monitoring tools display a running graph of input from card sensors in real time; very useful when troubleshooting problems. If you like the sound of this, but are an AMD aficionado, look to instead.
The "Try it for free" button on the Product Information page takes you to the vendor's site, where you can download the latest version of the software. The software's interface is in English, but the website is in German.