Logic board with upgraded 2.5 GHz Core i7 (i7-4870HQ) processor, upgraded 16 GB memory, and upgraded discrete graphics option. Once chosen, the processor and memory cannot be upgraded without switching logic boards, so choose wisely. Dual graphics processors allows macOS to dynamically switch between low energy usage and high power options.
MacBook Pro / MacBookPro11,2 / 2.0 GHz - i7 - ( Late 2013, 15-Inch )
MacBook Pro / MacBookPro11,3 / 2.3 GHz - i7 - ( Late 2013, 15-Inch )
Product details
820-3787-A 661-00679 15inch MacBook Pro Retina Mid 2014 Logic Board Discrete GPU 2.5GHz 16GB A1398 NB-5285W This is a replacement 2.5GHz logic board for the Retina MacBook Pro released in Mid 2014 with 16GB of RAM. Apple part number: 661-00679, 820-3787-A
Compatible models: Macbook Pro (Retina 15-inch Mid 2014), A1398, 820-3787-A