A good processor speed for a desktop greatly depends on which tasks the user wishes to perform. For basic tasks such as web browsing, word processing, and streaming movies, most any processor will do. For most users, a processor speed of 3.5 - 4 GHz will cover most of their needs, but depending on the task, it could be necessary to look at higher speeds such as 6 or 8 GHz. For more intensive tasks such as video editing and gaming, however, a processor speed of 5 GHz or higher is recommended.