Apple MacBook "Core M" 1.3 12" (Early 2015) - MF855LL/A-BTO
Early 2015 MacBook8,1 - A1534 - 2746
The MacBook "Core M" 1.3 12-Inch (Early 2015) technically is a "configure-to-order" configuration of either the MacBook "Core M" 1.1 12-Inch (Early 2015) or MacBook "Core M" 1.2 12-Inch (Early 2015), but it also is documented as a separate model for reader convenience. Other than processor, this model is identical to its lower-end brethren.
Although these models share their name with the earlier MacBook models from yesteryear, the "Retina" MacBook models are radically different than their predecessors.
"Reinvented" for the ultimate in portability, the "Early 2015" MacBook models are even lighter and thinner than the smallest models from the MacBook Air series, and with just one USB-C port for connectivity and a headphone jack, the hardware more resembles an iPad with an attached keyboard than it resembles earlier Apple notebooks. However, like the MacBook Air, these MacBook models run OS X rather than the iPad's iOS.
The MacBook "Core M" 1.3 12-Inch (Early 2015) features a 14-nm 1.3 GHz Intel "Core M" processor (M-5Y71) with two independent processor "cores" on a single chip, a 4 MB level 3 cache, an "integrated" Intel HD Graphics 5300 graphics processor that shares system memory, 8 GB of onboard 1600 MHz LPDDR3 SDRAM (that cannot be upgraded), and either 256 GB or 512 GB of onboard PCIe-based flash storage (that also cannot be upgraded).
This all is housed in a wafer thin (0.14-0.52 inch), 2.03 pound, aluminum case offered in "traditional" silver color as well as gold (pictured) and a darker slate "Space Gray" color option. It also packs a lowly 480p FaceTime webcam, a backlit full-size keyboard with a thin "butterfly mechanism" keyboard design, a clever haptic-capable "Force Touch" trackpad, and a beautiful 12" TFT LED-backlit active-matrix "Retina" display (2304x1440 native resolution at 226 ppi). Apple boasts that the notebook additionally uses a new "tiered" battery design to maximize space inside the chassis and delivers 9-10 hours of runtime depending on use.
- Intro Date: March 9, 2015*
- Standard Hard Drive: 256 GB, 512 GB
- Int. HD Interface: Onboard* (PCIe 2.0 x4)
- Standard RAM: 8 GB
- Maximum RAM: 8 GB
- Processor Speed: 1.3 GHz
- Processor Type: Core M (M-5Y71)
- System Bus Speed: OPI*
- RAM Type: LPDDR3 SDRAM*
- Min. RAM Speed: 1600 MHz
- Video Card: HD Graphics 5300
- VRAM Type: Integrated
- Standard VRAM: 1.5 GB*
- Native Resolution: 2304x1440
- Built-in Display: 12" (16:10)
- 2nd Display Support: Dual/Mirroring
- 2nd Max. Resolution: 3840x2160
- Standard Optical: None
- Standard Modem: None
- Standard Ethernet: None
- Standard AirPort: 802.11ac*
- Standard Bluetooth: 4.0
- USB Ports: 1 (C)
- Firewire Ports: None
- Expansion Slots: None
- Apple Order No: BTO/CTO
- Model ID: MacBook8,1
- Battery Type: 39.7 W h Li-Poly
- Battery Life: 9-10 Hours
- Dimensions: 14-.52 x 11.04 x 7.74
- Avg. Weight: 2.03 lbs (0.92 kg)