The 15 inch Macbook Pro a1398 model has a 99.5-watt-hour lithium-polymer battery lasts up to 9 hours between charges. The improved architecture provides better performance when playing high-resolution games, editing video in Final Cut Pro X, or rendering images in pro graphics applications. It also has 128 MB of “Crystalwell” embedded DRAM on the CPU package to provide more memory bandwidth than earlier integrated graphics solutions.
This model features 16GB of 1600MHz DDR3L onboard memory centering around a 64-Bit architecture.
This MacBook Pro 15 inch 2015 Mjlq2ll/a features MacOS X 10.10.3 (14D2134) and runs on a 2.2 GHz Intel Core i7 4770HQ processor with up to 3.4 GHz of Turbo Boost supported and Integrated Intel Iris 5200 Pro with 1.5 GB of “Crystalwell” embedded DRAM and shared system memory. Processor & Graphics Processing Unit (GPU)
