Cairo-Dock is an animated application launch bar for the desktop, comparable to the dock in Mac OS X or Rocket Dock (for Windows). Now, you can use Cairo-Dock with OpenGL (to use your graphic card!).
To Install the DOCK tool-bar, Simply follow the below steps.
Step 1: Open Terminal Window
Step 2: Type the below command
sudo apt-get install cairo-dock cairo-dock-plug-ins
Follow the instructions on the console.
After the installation, Click on
Application -> Accessories -> Cairo-Dock Open-GL
For more details https://help.ubuntu.com/community/CairoDock
Hope this helps.