This question stems from a large lack of understanding, but it concerns a project I've wanted to do for a while.
This is an Instructables page for an 8x8x8 led cube, and the 70th step addresses the question, "Can I use an Arduino to control the cube?" The tutorial outlines how to connect the cube with an Arduino Duemilanove.
Because Raspberry Pi can run an operating system, it would seem very well qualified to be able to beat an Arduino (at least the Uno and other small models) at this task, but I don't have the knowledge to compare the two.
What is the difference?