Metalklesk System Monitor Crystal 0.1
Metalklesk System Monitor Crystal is a SuperKaramba theme that monitors your nvidia GPU/
You can adjust it just editing .theme file with your favorite text editor (e.g. Kate).
This version is in Spanish only, but it's very easy to change to your language.
You must have installed Nvidia propietary drivers (nvidia-settings is used by this theme) if you want to see Nvidia GPU data (like core frequency, memory frecuency, etc).