I have a mac mini and a macbook retina with the exact same processor and video hardware. The mac mini has a HDD 500 gig and 4 gig of ram. The mackbook has SSD 256 gig and 8 gig of ram. Other than that they are essentially the same machine. My macbook is very snappy in every way - internet downloads are fast program loads are fast, etc. etc. It runs great. My mac mini is VERY sluggish. Program loads take forever. INternet down load seem very slow. The mac mini gets almost no use - I took it over from elderly Dad who never uses it all. The HDD is almost empty. Is this just me getting used to more ram and an SSD on my macbook? Or could something be going wrong. Seems unlikely that a standard mac mini would run this badly. Its really bad.