[Obsidian Dragon]

Yes. It runs well on Quad core processors. One recommended setting is to set your playback engine to use one less processor core that you have to leave a processor free to handle system functions and non-realtime plugins. In a dual core processor system that means you set it to only one (50% or your processor available to the playback engine). On a quad core processor system you set it to three (75% of your processor available to the playback engine).