Personal story: One of my first jobs out of college involved editing technical manuals for the Electric Power Research Institute, a research and development consortium for electric utilities.
Editing video in particular requires a good deal of computing power and two 1.25 GHz PowerPC chips should be able to deliver a noticeable performance boost in certain applications.
The latest upgrade means the OPC now has more power and speed for a wider range of creative needs from recording, video editing, gaming, music playback and 3D modeling to provide unbeatable value.