MacBook (2015–present)
Technical specifications

Model
Early 2015
Early 2016
Mid 2017
Release date
April 10, 2015
April 19, 2016
June 6, 2017
Model identifier
MacBook8,1
MacBook9,1
MacBook10,1
Model Number
A1534
A1534
A1534
Order Numbers
MF855LL/A, MF865LL/A, MJY32LL/A, MJY42LL/A, MK4M2LL/A, MK4N2LL/A
MLH72LL/A, MLH82LL/A, MLHA2LL/A, MLHC2LL/A, MLHE2LL/A, MLHF2LL/A, MMGL2LL/A, MMGM2LL/A
MNYF2LL/A, MNYG2LL/A, MNYH2LL/A, MNYJ2LL/A, MNYK2LL/A, MNYL2LL/A, MNYM2LL/A, MNYN2LL/A
Display
LED-backlit widescreen glossy, Retina Display
LED-backlit widescreen glossy, Retina Display
LED-backlit widescreen glossy, Retina Display
Display
12" Retina, 2304 × 1440 (16:10), 226 ppi, with millions of colors (supported scaled resolutions: 1440 × 900, 1280 × 800, 1024 × 640)
12" Retina, 2304 × 1440 (16:10), 226 ppi, with millions of colors (supported scaled resolutions: 1440 × 900, 1280 × 800, 1024 × 640)
12" Retina, 2304 × 1440 (16:10), 226 ppi, with millions of colors (supported scaled resolutions: 1440 × 900, 1280 × 800, 1024 × 640)
Video camera
iSight (480p)
iSight (480p)
iSight (480p)
Processor
1.1 GHz (M-5Y31) dual-core Intel Core M Broadwell processor (Turbo Boost up to 2.4 GHz) with 4 MB L3 cache1 1.2 GHz (M-5Y51) dual-core Intel Core M Broadwell processor (Turbo Boost up to 2.6 GHz) with 4 MB L3 cache1 Configurable 1.3 GHz (M-5Y71) dual-core Intel Core M Broadwell processor (Turbo Boost up to 2.9 GHz) with 4 MB L3 cache1
1.1 GHz dual-core Intel Core m3-6Y30 Skylake processor (cTDP Up mode, Turbo Boost up to 2.2 GHz) with 4MB L3 cache 1.2 GHz dual-core Intel Core m5-6Y54 Skylake processor (cTDP Up mode, Turbo Boost up to 2.7 GHz) with 4MB L3 cache Configurable 1.3 GHz dual-core Intel Core m7-6Y75 Skylake processor (cTDP Up mode, Turbo Boost up to 3.1GHz) with 4 MB L3 cache
1.2 GHz dual-core Intel Core m3-7Y32 Kaby Lake processor (Turbo Boost up to 3.0GHz) with 4MB L3 cache 1.3 GHz dual-core Intel Core i5-7Y54 Kaby Lake processor (Turbo Boost up to 3.2 GHz) with 4MB L3 cache Configurable 1.4 GHz dual-core Intel Core i7-7Y75 Kaby Lake processor (Turbo Boost up to 3.6GHz) with 4 MB L3 cache
System bus
N/A
4 GT/s OPI (Max. Theoretical Bandwidth 4 GB/s)
4 GT/s OPI (Max. Theoretical Bandwidth 4 GB/s)
Memory
8 GB 1600 MHz LPDDR3 SDRAM
8 GB 1866 MHz LPDDR3 SDRAM
8 GB 1866 MHz LPDDR3 SDRAM Configurable to 16 GB of RAM at time of purchase only
Graphics
Intel HD Graphics 5300 with LPDDR3 SDRAM shared with main memory
Intel HD Graphics 515 with LPDDR3 SDRAM shared with main memory
Intel HD Graphics 615 with LPDDR3 SDRAM shared with main memory
Flash storage
256 GB or 512 GB NVMe/PCIe 2.0 x4, 5.0 GT/s
256 GB or 512 GB NVMe/PCIe 3.0 x2, 8.0 GT/s
256 GB or 512 GB NVMe
WiFi
Integrated 802.11a/b/g/n/ac (2.4 & 5 GHz, up to 1.3 Gbit/s)
Integrated 802.11a/b/g/n/ac (2.4 & 5 GHz, up to 1.3 Gbit/s)
Integrated 802.11a/b/g/n/ac (2.4 & 5 GHz, up to 1.3 Gbit/s)
Bluetooth
Bluetooth 4.0
Bluetooth 4.0
Bluetooth 4.2
Peripheral connections
USB 3.1 generation 1 over USB-C, up to 5 Gbit/s (for power, converts to USB Type-A, and video out via separate adapter)
USB 3.1 generation 1 over USB-C, up to 5 Gbit/s (for power, converts to USB Type-A, and video out via separate adapter)
USB 3.1 generation 1 over USB-C, up to 5 Gbit/s (for power, converts to USB Type-A, and video out via separate adapter)
Peripheral connections
Headphone audio jack (supports iPhone headset with remote and microphone)
Headphone audio jack (supports iPhone headset with remote and microphone)
Headphone audio jack (supports iPhone headset with remote and microphone)
Video out
USB-C DisplayPort 1.2 Alternate Mode (maximum resolutions 4096x2304 at 48 Hz over HDMI 1.4b, and 3840x2160 at 60 Hz over DisplayPort and HDMI 1.4b)
USB-C DisplayPort 1.2 Alternate Mode (maximum resolutions 4096x2304 at 60 Hz over HDMI 2.0, and 3840x2160 at 60 Hz over DisplayPort)
USB-C DisplayPort 1.2 Alternate Mode (maximum resolutions 4096x2304 at 60 Hz over HDMI 2.0, and 3840x2160 at 60 Hz over DisplayPort)
Power
29 Watt USB 3.1 Type-C power adapter, 39.7 Wh battery
29 Watt USB 3.1 Type-C power adapter, 41.4 Wh battery
29 Watt USB 3.1 Type-C power adapter, 41.4 Wh battery
Weight
2.03 pounds (0.92 kg)
2.03 pounds (0.92 kg)
2.03 pounds (0.92 kg)
Dimensions
11.04 inches (28.04 cm) wide × 7.74 inches (19.66 cm) deep × 0.14 inches (0.36 cm) to 0.52 inches (1.32 cm) high
11.04 inches (28.04 cm) wide × 7.74 inches (19.66 cm) deep × 0.14 inches (0.36 cm) to 0.52 inches (1.32 cm) high
11.04 inches (28.04 cm) wide × 7.74 inches (19.66 cm) deep × 0.14 inches (0.36 cm) to 0.52 inches (1.32 cm) high
Colors
Space Gray, Silver, Gold
Space Gray, Silver, Gold, Rose Gold; in 2018, Rose Gold and Gold (original) were replaced with a new Gold
Space Gray, Silver, Gold, Rose Gold; in 2018, Rose Gold and Gold (original) were replaced with a new Gold
Keyboard
Butterfly mechanism
Butterfly mechanism
Second-generation butterfly mechanism

Question: How did Apple improve on the MacBook on April 19, 2016?
Answer: On April 19, 2016, Apple updated the MacBook with Intel HD 515 graphics and a new gold finish.