This specific model — the MacBook Pro “Core i5” 2.5 13-Inch (Late 2012 Retina Display) features a 22 nm “Ivy Bridge” 2.5 GHz Intel “Core i5” processor (3210M), with dual independent processor “cores” on a single silicon chip, a 3 MB shared level 3 cache, 8 GB of onboard 1600 MHz DDR3L SDRAM (which cannot be upgraded at all), 512gb SSD of flash storage standard (128 GB only starting February 13, 2013), an integrated Intel HD Graphics 4000 graphics processor that shares memory with the system, as well as an integrated 720p FaceTime HD webcam. It does not have an internal optical drive.
Connectivity includes 3-stream AirPort Extreme (802.11a/b/g/n), Bluetooth 4.0, two USB 3.0 ports, two “Thunderbolt” ports, an HDMI port, an audio in/out port, and an SDXC card slot. It does not have Gigabit Ethernet or Firewire “800,” although adapters are available at extra cost.
In addition, this model has a backlit keyboard, a “no button” glass “inertial” multi-touch trackpad, a “MagSafe 2” power adapter, and an internal, sealed battery.