This particular model — the MacBook Pro “Core i7” 2.3 15-Inch (Mid-2012 Retina Display) features a 22 nm “Ivy Bridge” 2.3 GHz Intel “Core i7” processor (3615QM), with four independent processor “cores” on a single silicon chip, a 6 MB shared level 3 cache, 8 GB of onboard 1600 MHz DDR3L SDRAM (which cannot be upgraded after purchase), 256 GB of flash storage, dual graphics processors — a NVIDIA GeForce GT 650M with 1 GB of dedicated GDDR5 memory and an “integrated” Intel HD Graphics 4000 graphics processor that shares system memory, 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 that provides an Apple estimated 7 hours of battery life.
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15″ 2.3GHz, Intel Core i7
8GB Memory, 256GB SSD
Integrated Intel HD Graphics 4000
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
Fresh installation of macOS 10.14 Mojave, includes new MagSafeadapter
Specification: Apple MacBook Pro MC975LL/A 15.4-Inch Laptop with Retina Display (OLD VERSION) (Renewed)