AirPort/Bluetooth Card
型号：
A1419 EMC 2806 Late 2014 iMac15,1 3.5 GHz, A1419 EMC 2806 Late 2014 iMac15,1 4.0 GHz, A1419 EMC 2806 Late 2015 iMac15,1 3.3 GHz, A1419 EMC 2834 Late 2015 iMac17,1 3.2 GHz, A1419 EMC 2834 Late 2015 iMac17,1 3.3 GHz, A1419 EMC 2834 Late 2015 iMac17,1 4.0 GHz
Upgrades
You can cost-effectively upgrade a number of components in the iMac Intel 27" Retina 5k.
- Memory: If your iMac is still running with only the stock RAM, upgrading will provide a dramatic performance boost at minimal cost. Upgrading to the maximum of 32 GB (four 8 GB modules) is simple and provides unmatched performance.
Background and Identification
Released October 16, 2014, the iMac 27" EMC 2806 features a Retina 5K display. It can be identified by its model number A1419 and EMC number 2806, both of which are located beneath the single foot.
In 2015, Apple offered a lower-spec, less expensive alternative to the 2014 model, with a 3.3 GHz Core i5 processor.
In late 2015, Apple offered the EMC 2834 featuring a a 14-nm "Skylake" Quad Core 4.0 GHz Intel "Core i7" processor.
Specifications
Announce Date: October 16, 2014
Model Number: A1419
Developer: Apple Inc.
Operating System: OS X Yosemite
Processor: The EMC 2806 features a 3.5 GHz quad-core Intel Core i5 (Turbo Boost up to 3.9 GHz) or 4.0 GHz quad-core Intel Core i7 (Turbo Boost up to 4.4 GHz) both by Haswell. The 2834 features a 4.0 GHz quad-core Intel Core i7 processor by Skylake.
Display: 27-inch (diagonal) Retina display with IPS technology; 5120‑by‑2880 resolution with support for millions of colors
RAM: 8 GB (2x4 GB) of 1600 MHz DDR3 RAM, four user-accessible SO-DIMM slots customizable up to 32 GB
Storage: 1 TB Fusion Drive (7200 RPM), Configurable to 3 TB Fusion Drive or 256 GB, 512 GB, or 1 TB of flash storage (SSD)
Graphics: AMD Radeon R9 M290X graphics processor with 2 GB of GDDR5 memory configurable to AMD Radeon R9 M295X with 4 GB of GDDR5 memory on the EMC 2806. AMD Radeon R9 M390 or AMD Radeon R9 M395 graphics processor with 2 GB of dedicated GDDR5 memory on the EMC 2834.
Ports: Four USB 3.0 ports, two Thunderbolt 2.0 ports, one SDXC slot, gigabit Ethernet port, headphone jack/optical digital audio output
Connectivity: 802.11ac Wi-Fi, IEEE 802.11a/b/g/n compatible, and Bluetooth 4.0
