The Apple iMac Retina 4K 21.5-inch Late 2015 is a personal computer that was designed, manufactured, and sold by Apple from 2015 to 2017 as part of the iMac series. The computer has been introduced on October 13, 2015, and its price started at $1499.
The new iMac features a 3.1 GHz Intel Core i5 or 3.3 GHz Intel Core i7 processor, 8 GB or 16 GB of RAM, 21.5-inch high-resolution Retina 4K glossy LED-backlit IPS LCD Display, 1 TB hard drive, Ambient Light Sensor, FaceTime HD camera, two Thunderbolt 2 ports USB 3.0 ports, an SDXD card slot, and 1.5 GB Intel Iris Pro 6200 graphics in the base model.
This iMac has been discontinued on June 5, 2017.
Today iMac Retina 4K 21.5-inch Late 2015 is 7 years old!
iMac Retina 4K 21.5-inch Late 2015 Release Date and Original Price
| Introduced | October 13, 2015 |
| Discontinued | June 5, 2017 |
| Model Identifier | iMac16,2 |
| Model Number | A1418 |
| EMC | 2833 |
| Order Number | MK452LL/A |
| Original Price | $1,499 $1,699 |
| Colors | Silver Aluminum |
| Weight | 12.5 Ibs. 5.669 KG |
| Dimensions | 17.7” H x 20.8” W x 6.9” D 44.95 cm H x 52.83 cm W x 17.52 cm D |
Tech Specs
Processor
| Processor | Intel Core i5 5675R “Broadwell” (3.1 GHz) Intel Core i7 5775R “Broadwell” (3.3 GHz) |
| Processor Speed | 3.1 GHz 3.3 GHz |
| Maximum Processor Speed | Up to 3.6 GHz (Core i5) Up to 3.8 GHz (Core i7) |
| Architecture | 64-bit |
| Number of Cores | 4 |
| System Bus | Intel Direct Media Interface (DMI) at 5 GT/s |
| Cache | 4 MB L3 (Core i5) 6 MB L3 (Core i7) |
Storage & Media
| Storage | 1 TB HDD 1 TB Fusion Drive 2 TB Fusion Drive 256 GB SSD 512 GB SSD |
| Media | None |
Memory
| Built-in Memory | 8 GB integrated PC3-14900 204-pin LPDDR3 1867 MHz 16 GB integrated PC3-14900 204-pin LPDDR3 1867 MHz |
| Maximum Memory | 16 GB |
| Memory Slots | None |
| Interleaving Support | Yes |
Display
| Built-in Display | 21.5″ high-resolution Retina 4K IPS LED-backlit LCD glossy widescreen Display |
| Display Glass | Standard |
| Color Gamut | Wide color gamut P3 |
| Brightness | Unknown |
| Pixel Density | 219 ppi |
| Resolutions | 4096 x 2304 |
Graphics
| Graphics Card | Intel Iris Pro Graphics 6200 |
| Graphics Memory | Up to 1.5 GB shared from main memory |
| Display Connection | 2 – Thunderbolt 2 |
| Display Support | Support for up to two Thunderbolt displays |
| Display Modes | Dual display extended, video mirroring, and AirPlay Mirroring |
| External Resolution | Up to 4096 x 2304 pixels |
| Camera | FaceTime HD |
Expansion
| Expansion Slots | 1 – Secure Digital (SDXC) |
| Hard Drive Interface | 1 – 6 Gbps Serial ATA (SATA) 1 – 8.0 GT/s PCIe x4 |
Connections
| Ethernet | 10/100/1000BASE-T (RJ-45) |
| Modem | None |
| Wi-Fi | 802.11ac |
| Bluetooth | Bluetooth 4.0 |
| USB | 4 – Up to 5 Gbps |
| Infrared | None |
| Thunderbolt | 2 – Thunderbolt 2 (Up to 20 Gbps) |
| Audio In | 1 – 3.5-mm analog/optical combo jack 2 – Microphones |
| Audio Out | 1 – 3.5-mm analog/optical combo jack 2 – Built-in speakers |
| Display | 2 – Thunderbolt 2 |
Software
| Original OS | OS X 10.11 |
| Later OS | OS X 10.11.1 |
| Maximum OS | macOS 12.6 |
| Firmware | Intel Extensible Firmware Interface |
| AirDrop | Supported |
| Handoff | Supported |
| Unlock with Apple Watch | Supported with macOS Sierra (Apple Watch (1st generation), Apple Watch Series 1, and Apple Watch Series 2) macOS High Sierra or later (Apple Watch Series 3 or later) |
| Bundled Software | OS X 10.11 iPhoto iMovie GarageBand Pages Numbers Keynote |
Keyboard and Mouse
| Peripherals | Magic Keyboard Magic Mouse 2 or Magic Trackpad 2 |
Power
| Backup Battery | 3 V CR2032 Lithium |
| Maximum Continuous Power | 205 W |
| Line Voltage | 100-240 V AC |
References:
Apple Support – iMac (Retina 4K, 21.5-inch, Late 2015): Technical Specifications
