Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately).Support for Apple iPhone headset with microphone.Audio line in/optical digital audio input (minijack).Headphone/optical digital audio output (minijack).Two internal 17-watt high-efficiency amplifiers.Support for extended desktop and video mirroring modes.Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display.2.7GHz quad-core Intel Core i5 with 6MB on-chip shared 元 cacheĬonfigurable to 2.8GHz quad-core Intel Core i7, only at the Apple Online Store.Ĭonfigurable to 16GB, only at the Apple Online Store.Ĭonfigurable to 2TB hard drive or 256GB solid-state second drive, only at the Apple Online Store.ĪMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memoryĪMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory.2.5GHz quad-core Intel Core i5 with 6MB on-chip shared 元 cache.21.5-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors.
