Today at Apple's online store refurbished Mac mini models start as low as $519 for a Mac mini originally released in July of 2011 with a 2.3GHz Intel dual-core i5 processor, 2GB of RAM and a 500GB hard drive. For a little more $699, is the refurb. Mac mini with a 2.5GHz Intel dual-core i5 processor, 4GB of RAM and a 500GB hard drive. Also priced low is the refurb. Mac mini with Snow Leopard Server, a 2.66GHz Intel core 2 duo processor, 4GB of RAM and dual 500GB hard drives, now only $749.