Inexpensive, But Never Cheap All that, and not an inch of wasted space. Apple engineers designed this small wonder from the ground up to deliver the most Mac for the least dinero. Inside its petite 2-inch tall, 6.5-inch square anodized aluminum enclosure, Mac mini houses a 1.25 or 1.42GHz G4 processor, 40 or 80GB hard drive, a slot-loading CD-R/DVD-ROM optical drive, 256MB DDR SDRAM and ATI Radeon 9200 graphics chip with 32MB dedicated DDR SDRAM — all whisper-quiet.