Desktop users may benefit from it on their utility bill. For some multi-core processors, core parking is not enabled by default, and if you want to enable the feature you will be hard pressed to find any tools or information that allows you to do that. Users with AMD processors on the other hand may experience less than optimal processing powers while core parking is enabled on their system. You may remember that this was an issue some time ago. Microsoft has released a hotfix for AMD users that disables core parking on the system.