The MacBook Pro "Core i7" 2.5 15-Inch (Dual Graphics - Mid-2014 Retina Display) features
a 22 nm "Haswell/Crystalwell" 2.5 GHz Intel "Core i7" processor (4870HQ),
with four independent processor "cores" on a single silicon chip,
a 6 MB shared level 3 cache,
16 GB of onboard 1600 MHz DDR3L SDRAM,
512 GB of PCIe-based flash storage,
and dual graphics processors
-- a NVIDIA GeForce GT 750M with 2 GB of dedicated GDDR5 memory and
-- an integrated Intel Iris 5200 Pro graphics processor with 128 MB of "Crystalwell" embedded DRAM (and shared system memory).

It also has
an integrated 720p FaceTime HD webcam and
a high-resolution LED-backlit 15.4" widescreen 2880x1800 (220 ppi) "Retina" display in
a case that weighs just less than 4.5 pounds (2.02 kg).

It does not have an internal optical drive.

Connectivity includes
802.11ac Wi-Fi,
Bluetooth 4.0,
two USB 3.0 ports,
two "Thunderbolt 2" ports,
an HDMI port,
an audio in/out port, and
an SDXC card slot.

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.

Please note that stock images are used.