A bit slow on core2duo, but will work if you have only a few tracks. Runs great on 1,7 GHz Intel Core i7 (2013) to a certain extent. I've tested with 40 audio tracks mixed and processed with various audio processing. Beyond that, if you don't use proper bus rerouting, you may have problems. But honestly, for most projects, you won't need that much processing power. For video editing though (imovie and final cut), this is definitely not enough. If you plan doing this, even in the future, more power will be required.