Enclosure: Precision aluminum unibody
Processor: 2.5GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1GHz)
L3 cache: 3MB shared
Memory: 4GB of 1600MHz DDR3 memory SDRAM; supports up to 8GB
Hard drive: 500GB Serial ATA; 5400 rpm
Optical Drive: 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
Graphics: Intel HD Graphics 4000
Video: 720p FaceTime HD camera; Thunderbolt port with support for DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold separately)
Display: 13.3-inch (diagonal) LED-backlit glossy widescreen display, 1280-by-800 resolution
Expansion: MagSafe power port, Gigabit Ethernet port, FireWire 800 port (up to 800 Mbps), Two USB 3 ports (up to 5 Gbps), Thunderbolt port (up to 10 Gbps), Audio line in/out, SDXC card slot, Kensington lock slot
Audio: Stereo speakers with subwoofer, omnidirectional microphone, combined headphone/line in/out (digital/analog), Support for Apple iPhone headset with remote and microphone
Networking: 10/100/1000BASE-T (Gigabit) Ethernet
Wireless: Wi-Fi (based on IEEE 802.11n specification); Bluetooth 4.0 wireless technology
Hardware Accessories: 60W MagSafe Power Adapter, AC wall plug, power cord

Processor: 2.3GHz Quad-core Intel Core i7 processor (Turbo Boost up to 3.3GHz)
L3 cache: 6MB shared
Memory: 4GB of 1600MHz DDR3 memory SDRAM; supports up to 8GB
Hard drive: 500GB Serial ATA; 5400 rpm
Optical Drive: 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
Graphics: Intel HD Graphics 4000 , NVIDIA GeForce GT 650M with 512MB of GDDR5 memory
Video: 720p FaceTime HD camera; Thunderbolt port with support for DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold separately)
Display: 15.4-inch (diagonal) LED-backlit glossy or optional antiglare widescreen display, 14400-by- 900
Expansion: MagSafe power port, Gigabit Ethernet port, FireWire 800 port (up to 800 Mbps), Two USB 3 ports (up to 5 Gbps), Thunderbolt port (up to 10 Gbps), Audio line in, Audio line out, SDXC card slot, Kensington lock slot
Audio: Stereo speakers with subwoofer, omnidirectional microphone, combined headphone/line in/out (digital/analog), Support for Apple iPhone headset with remote and microphone
Networking: 10/100/1000BASE-T (Gigabit) Ethernet
Wireless: Wi-Fi (based on IEEE 802.11n specifications); Bluetooth 4.0 wireless technology
Hardware Accessories: 85W MagSafe Power Adapter with cable management system; MagSafe power port

Enclosure: Precision aluminum unibody
Processor: 2.6GHz Quad-core Intel Core i7 processor (Turbo Boost up to 3.6GHz)
L3 cache: 6MB shared
Memory: 8GB of 1600MHz DDR3 memory SDRAM; supports up to 8GB
Hard drive: 750GB Serial ATA; 5400 rpm
Optical Drive: 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW)
Graphics: Intel HD Graphics 4000 , NVIDIA GeForce GT 650M with 1GB of GDDR5 memory
Video: 720p FaceTime HD camera; Thunderbolt port with support for DVI, VGA, dual-link DVI, and HDMI (requires adapters, sold separately)
Display: 15.4-inch (diagonal) LED-backlit glossy or optional antiglare widescreen display, 14400-by-900 resolution
Expansion: MagSafe power port, Gigabit Ethernet port, FireWire 800 port (up to 800 Mbps), Two USB 3 ports (up to 5 Gbps), Thunderbolt port (up to 10 Gbps), Audio line in, Audio line out, SDXC card slot, Kensington lock slot
Audio: Stereo speakers with subwoofer, omnidirectional microphone, combined headphone/line in/out (digital/analog), Support for Apple iPhone headset with remote and microphone
Networking: 10/100/1000BASE-T (Gigabit) Ethernet
Wireless: Wi-Fi (based on IEEE 802.11n specification); Bluetooth 4.0 wireless technology
Hardware accessories: 85W MagSafe Power Adapter with cable management system; MagSafe power port