The MacBook Pro "Core i5" 2.7 13-Inch (Early 2015 Retina Display) features a 14 nm "Broadwell" 2.7 GHz Intel "Core i5" processor (5257U), with dual independent processor "cores" on a single silicon chip, a 3 MB shared level 3 cache, 8 GB of onboard 1866 MHz LPDDR3 SDRAM (which could be upgraded to 16 GB at the time of purchase, but cannot be upgraded later), 128 GB or 256 GB of 4 Lane PCIe-based flash storage by default (only 128 GB by default starting on October 27, 2016), and an integrated Intel Iris Graphics 6100 graphics processor that shares memory with the system. It also has an integrated 720p FaceTime HD webcam, and a high-resolution LED-backlit 13.3" widescreen 2560x1600 (227 ppi) "Retina" display in a case that weighs just less than 3.5 pounds (1.58 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.
This system fully supports the final version of OS X 10.10 "Yosemite," OS X 10.11 "El Capitan," macOS Sierra (10.12), and macOS High Sierra (10.13). Running macOS High Sierra (10.13) or later, it supports HEVC (High-Efficiency Video Coding), but it does not support hardware accelerated HEVC.
This model is compatible with the final version of macOS Mojave (10.14), macOS Catalina (10.15), and macOS Big Sur (macOS 11), as well. It additionally supports the final version of macOS Monterey (macOS 12), but it does not support Universal Control, AirPlay to Mac, or Low Power Mode in addition to the more minor Spatial Audio, Portrait Mode, 3D Landmarks, and Interactive Globe features. It does not support macOS Ventura (macOS 13) or later.