What is the difference between Photoshop CS5 Extended and Photoshop CS5?
Photoshop CS5 Extended delivers all of the unrivaled image-editing power of Photoshop CS5 and more, including breakthrough 3D image creation, editing, and painting; rich motion graphics editing, and powerful image analysis. For complete details on the features of each product, compare Photoshop CS5 editions.
Source: Adobe.com