Apple 21.5", iMac. Processor clock speed: 2700 MHz, Turbo frequency (max): 3200 MHz, Processor family: Intel Core i5. Internal memory: 8192 MB, Maximum internal memory: 16 GB, Internal memory type: DDR3-SDRAM. Total storage capacity: 1000 GB, Storage media type: HDD, Hard drive rotational speed: 5400 RPM. Compatible memory cards: SDXC. Display diagonal: 546.1 mm (21.5 "), Display resolution: 1920 x 1080 pixels