MacBook Pro "Core i7" 2.6 15-Inch (Dual Graphics - Late 2013 Retina Display)

The MacBook Pro "Core i7" 2.6 15-Inch (Dual Graphics - Late 2013 Retina Display) technically is a "configure-to-order" configuration of the MacBook Pro "Core i7" 2.3 15-Inch (Dual Graphics - Late 2013 Retina Display), but also is documented as a separate model for reader convenience. Other than the processor, these models are identical.

The MacBook Pro "Core i7" 2.6 15-Inch (Dual Graphics - Late 2013 Retina Display) features
a 22 nm "Haswell/Crystalwell" 2.6 GHz Intel "Core i7" processor (4960HQ),
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,
512GB 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.

Compared to its predecessor, this model has effectively the same external enclosure, but it has a more efficient processor and architecture -- which results in improved battery life -- as well as faster storage, Wi-Fi, and connectivity.

Please note that stock images are used.