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Apple iMac "Core i5" 3.2 27" (5K, Late 2015) Specs

Identifiers: Retina 5K, Late 2015 - MK462LL/A* - iMac17,1 - A1419 - 2834

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27-Inch Retina 5K Late 2015 iMacThe iMac "Core i5" 3.2 27-Inch Aluminum (Retina 5K, Late 2015/Skylake) features a 14-nm "Skylake" Quad Core 3.2 GHz Intel "Core i5" processor (6500) with four independent processor "cores" on a single chip, a 6 MB shared level 3 cache, 8 GB of 1867 MHz LPDDR3 SDRAM (PC3-14900) installed in pairs (two 4 GB modules), either a 1 TB (7200 RPM) hard drive or a 1 TB "Fusion Drive," and an AMD Radeon R9 M380 or AMD Radeon R9 M390 graphics processor with 2 GB of dedicated GDDR5 memory. It also has a built-in "FaceTime HD" webcam and stereo speakers.

This model has a 27" 5120x2880 LED-backlit 16:9 widescreen IPS DCI-P3 "Retina 5K" display. The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges.

Connectivity includes four USB 3.0 ports, dual Thunderbolt 2 ports, Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n compatible), and Bluetooth 4.0.

Compared to its predecessor, this model essentially has the same external enclosure, but it has a higher quality DCI-P3 "Retina 5K" display with a wider color gamut as well as a more advanced architecture and graphics architecture.

The "Late 2015" iMac models shipped with a compact aluminum Apple Magic Keyboard and the choice of either a multi-touch "Magic Mouse 2" or a traditional wired Apple mouse. For an additional US$50, one also could upgrade from the Magic Mouse 2 to the "Magic Trackpad 2," which provides multi-touch and pressure-sensitive "Force Touch" capabilities.

Also see:

  • What are all the differences between the "Late 2015" Aluminum iMac models?
  • What are all of the differences between the "Late 2015" Aluminum iMac models and the models replaced?

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Click on a category for related details. The most commonly needed info is "open" by default, but all info is important. Asterisks (*) reference data in details fields.


October 13, 2015 June 5, 2017
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 2015.
1 (4 Cores) 64-Bit
Details: Also see: All models with a 64-Bit processor courtesy of EveryMac.com's Ultimate Mac Sort.
9645 11014
Details: Geekbench 2 benchmarks are in 32-bit and 64-bit modes, respectively. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit and 64-bit Geekbench 2 user submissions for Macs with the iMac17,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 2 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
3552 10953
Details: These Geekbench 3 benchmarks are in 32-bit mode and are for a single processor core and all processor cores, respectively. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit single core and multicore Geekbench 3 user submissions for Macs with the iMac17,1 Model Identifier, which may include multiple models.

To dynamically compare 32-bit Geekbench 3 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
3479 11696
Details: These Geekbench 3 benchmarks are in 64-bit mode and are for a single processor core and all processor cores, respectively. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 64-bit single core and multicore Geekbench 3 user submissions for Macs with the iMac17,1 Model Identifier, which may include multiple models.

To dynamically compare 64-bit Geekbench 3 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
4375 12144
Details: These Geekbench 4 benchmarks are are for a single processor core and all processor cores, respectively. All Geekbench 4 benchmarks are 64-bit. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all single core and multicore Geekbench 4 user submissions for Macs with the iMac17,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 4 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
850 2933
Details: These Geekbench 5 benchmarks are are for a single processor core and all processor cores, respectively. All Geekbench 5 benchmarks for the Mac are 64-bit. Both numbers reflect an average of user provided results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all single core and multicore Geekbench 5 user submissions for Macs with the iMac17,1 Model Identifier, which may include multiple models.

To dynamically compare Geekbench 5 results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
3.2 GHz Core i5 (I5-6500)
Details: This model is powered by a 14 nm, 64-bit "Sixth Generation" Intel Core i5 "Skylake" (I5-6500) processor which includes four independent processor "cores" on a single silicon chip. Each core has a dedicated 256k level 2 cache, shares 6 MB of level 3 cache, and has an integrated memory controller (dual channel).

This system also supports "Turbo Boost 2.0" -- which "automatically increases the speed of the active cores" to improve performance when needed (up to 3.6 GHz for this model). It has four hardware processor cores and four "threads" for software multitasking.

Also see: How much faster are the "Late 2015" iMac models than the models replaced?
3.6 GHz N/A
Details: The higher-end configuration of this model (MK472LL/A) additionally can be configured with a 4.0 GHz Quad Core "Core i7" processor (I7-6700K) for an extra US$300. This "Core i7" processor supports Hyper-Threading (it has two threads per core for a total of eight threads for the system) as well as Turbo Boost 2.0 (the system can dynamically increase the processor clockspeed to 4.2 GHz when tasks demand). It has a larger 8 MB level 3 cache, too.

As requested by readers, EveryMac.com also has documented this custom configuration as its own model.
LGA 1151* Integrated
Details: *Officially, Apple provides no information about whether or not the processor in this model can be upgraded and the company does not intend for one to upgrade the processor either. However, the processor is mounted on a LGA 1151 socket and can be physically upgraded with a compatible processor with a maximum TDP of 91 W or less.

Also see: Is it possible to upgrade the processor in the "Tapered Edge" Aluminum iMac models?
8 GT/s* 3.2 GHz (Built-in)
Details: *This system has a "Direct Media Interface" -- specifically DMI3 -- that "connects between the processor and chipset" in lieu of a traditional system bus. Intel reports that it runs at 8 GT/s.
EFI 64-Bit
Details: N/A
32k/32k 256k x4, 6 MB (on chip)
Details: Each core has its own dedicated 256k level 2 cache and the system has 6 MB of shared level 3 cache.
PC3-14900 DDR3 1867 MHz
Details: Supports 1867 MHz PC3-14900 DDR3 SDRAM SO-DIMMs (204-pin).

Also see: How do you upgrade the RAM in the "Late 2015" Tapered Edge Aluminum iMac models? Is it even possible? What type of RAM do they use? How much RAM does each model actually support?
8 GB 64 GB*
Details: By default, 8 GB is installed as two 4 GB memory modules (and two slots are unoccupied).

*Officially, this model supports four 8 GB modules -- one in each slot for a maximum of 32 GB of memory. However, as first discovered by site sponsor OWC, it actually will support 64 GB of memory using four 16 GB modules.

In the US (and many other countries), site sponsor Other World Computing sells memory -- as well as other upgrades -- for this iMac.

In the UK, site sponsor Flexx sells memory and other upgrades for this iMac.

In Germany, site sponsor CompuRAM sells memory and other upgrades for this iMac.

In Australia, site sponsor Upgradeable sells memory and other upgrades for this iMac.

Also see: Actual Max RAM of All G3 & Later Macs.
None 4
Details: This system has four RAM slots and the RAM can be upgraded after purchase.
Radeon R9 M380/M390* GDDR5
Details: This model has either an AMD Radeon R9 M380 (MK462LL/A) or AMD Radeon R9 M390 (MK472LL/A) graphics processor with 2 GB of dedicated GDDR5 memory.

Which "Tapered Edge" iMac have video processors with dedicated memory? Which have integrated memory?
2 GB 2 GB
Details: This model has 2 GB of dedicated GDDR5 video memory.
27" 16:9 Widescreen 5120x2880
Details: This model has a 27" LED-backlit 16:9 widescreen TFT active matrix "Retina 5K" display with IPS technology, a native resolution of 5120x2880, and an expanded DCI-P3 color gamut.

In the UK, site sponsor ALB Repair offers component-level logic board repair, display repair, and other repair services for this iMac. No fix, no fee!

In Spain, site sponsor iRepairs provides affordable repair and data recovery services. In-person and by mail repair services include the display, graphics card, motherboard, power supply, and more for this iMac.

In Hong Kong, site sponsor iCertified provides well-reviewed repair services for the display, logic board, water damage, and more, all with a 180-day warranty; free diagnostics and estimates; and optional pickup and delivery for this iMac.
Dual/Mirroring* 5120x2880*
Details: *This model can simultaneously support the internal display at full native resolution and either a single external 5120x2880 dual-cable external display or two external 4096x2160 displays.
1 TB HDD N/A
Details: This model is equipped by default with either a 1 TB (7200 RPM) hard drive (MK462LL/A) or a 1 TB "Fusion" Drive, which combines a 24 GB SSD and a 1 TB hard drive (MK472LL/A). It has a Serial ATA (6 Gb/s) connector for a 3.5" hard drive.

At the time of purchase, Apple offered a 2 TB "Fusion Drive" (which combines a 128 GB SSD and a 2 TB hard drive) for an extra US$200, a 3 TB "Fusion Drive" (which combines a 128 GB SSD and a 3 TB hard drive) for an extra US$300, a 256 GB SSD for an extra US$100, a 512 GB SSD for an extra US$400, or a 1 TB SSD for an extra US$900.

Also see: How do you upgrade the hard drive in the "Tapered Edge" Aluminum iMac models? What type of storage do they support? Is it even possible to upgrade these models?

In the US (and many other countries), site sponsor Other World Computing sells storage upgrades for this iMac.

In the UK, site sponsor Flexx sells storage upgrades for this iMac.

In Australia, site sponsor Upgradeable sells storage upgrades for this iMac.

Also see: SSD Compatibility Guide for All G3 & Later Macs.
3.5" (26.10 mm)/Proprietary* Serial ATA (6 Gb/s)/PCIe*
Details: *This model has a SATA III (6 Gb/s) connector for a 3.5" hard drive as well as a proprietary PCIe connector for an SSD. If the SSD is not installed at the time of purchase, the connector still is present and later professional or self-installation is possible.
None* None
Details: *This iMac does not have an internal optical drive. Site sponsor Adorama offers the external Apple USB SuperDrive for US$79. It writes DVD+R DL and DVD-R DL at 4X, DVD-R and DVD+R at 8X, DVD-RW at 6X, DVD+RW at 8X, reads DVD at 8X, writes CD-R at 24X, writes CD-RW at 16X, and reads CD at 24X.

Site sponsor Other World Computing also has a variety of compact external optical drive options that may be of interest, including some with Blu-ray capability.

Also see: What are the full capabilities of the external SuperDrive? Can it be used with other Macs?
None 10/100/1000Base-T
Details: N/A
802.11ac* 4.0
Details: *802.11ac Wi-Fi (802.11a/b/g/n backwards compatible) and Bluetooth 4.0 standard.
4 (3.0) None
Details: Four USB 3.0 ports.
SDXC SD Card None
Details: In the US (and many other countries), site sponsor Other World Computing sells a wide variety of external expansion options and hand-picked accessories like external storage, stands, keyboards, cables, adapters, speakers, and more for this iMac.
Apple Magic Keyboard Magic Mouse 2*
Details: *This model ships with a small aluminum wireless compact keyboard (without a numeric keypad) with a rechargeable battery. By default, it also ships with the wireless "Magic Mouse 2" with multi-touch surface support although this may be substituted with a traditional Wired Apple Mouse at no extra charge. For an extra US$50, one can change the Magic Mouse 2 for an also wireless "Magic Trackpad 2" that provides multi-touch input and Force Touch (which provides different options depending on the pressure and duration of a touch or press). For an additional US$129, one can have both a Magic Mouse 2 and a Magic Trackpad 2.
All-in-One 27" iMac Late 2012
Details: The 27-Inch "Late 2015" Aluminum iMac models use a case design that is effectively identical to the earlier "Late 2012," "Late 2013" and "Late 2014" models, but both the display and the internals are different. All of these lines have a glass front laminated directly to the LCD and an aluminum back that is thicker in the middle and tapers to a razor thin 5 mm edge. The entire device sits upon an aluminum "foot" that is 8 inches (20.3 cm) deep.
MK462LL/A* Retina 5K, Late 2015
Details: *MK462LL/A refers to the configuration with a 1 TB (7200 RPM) hard drive and an AMD Radeon M380 graphics processor. MK472LL/A refers to the configuration with a 1 TB "Fusion Drive" and an AMD Radeon M390 graphics processor.
A1419 (EMC 2834) iMac17,1
Details: Please note that these identifiers refer to more than one model.

Also see: All Macs with the A1419 Model Number, the 2834 EMC Number, and the iMac17,1 Model Identifier.

For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section.
N/A N/A
Details: N/A
X 10.11 (15A4310) 12.x (Monterey)*
Details: *This system fully supports the last version of OS X 10.11 "El Capitan" including Metal graphics acceleration. It is fully supported by the last version of macOS Sierra (10.12) and macOS High Sierra (10.13), also. Running macOS High Sierra (10.13) or later, it supports HEVC (High-Efficiency Video Coding), but it does not support hardware accelerated HEVC.

This model is compatible with the final version of macOS Mojave (10.14), macOS Catalina (10.15), and macOS Big Sur (macOS 11), as well. It additionally supports the final version of macOS Monterey (macOS 12), but it does not support AirPlay to Mac and the more minor Spatial Audio, Portrait Mode, 3D Landmarks, and Interactive Globe features. It does not support macOS Ventura (macOS 13) or later.

Also see: Which Macs are compatible with macOS Monterey (macOS 12)? What are the system requirements? What are the major new features? Do all features work with all supported Macs?
10 (64-Bit)* 10 (64-Bit)*
Details: *The pre-installed version of Apple's Boot Camp 6 supports the 64-bit version of Windows 10. Earlier versions of Windows are not supported.
None Boot/Virtualization
Details: Also see: Are there any third-party programs to run Mac OS 9/Classic applications on Intel Macs?

For more on running Windows on Intel Macs, please refer to the exhaustive Windows on Mac Q&A.
20.3 x 25.6 x 8 21 lbs. (9.54 kg)
Details: In inches - height by width by depth, (51.6 cm, 65.0 cm, 20.3 cm).
US$1799, US$1999* US$450-US$550
Details: *Configured with a 1 TB (7200 RPM) hard drive (MK462LL/A) and a AMD Radeon M380 graphics processor, this model originally was US$1799. Configured with a 1 TB "Fusion Drive" and AMD Radeon M390 graphics processor, it was US$1999 (MK472LL/A).

Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple Computer.


Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.


2 (Thunderbolt 2) None
Details: This model is equipped with two Thunderbolt 2 ports. Thunderbolt 2 is backwards-compatible with Mini DisplayPort-equipped displays as well as adapters that are compatible with Mini DisplayPort (DVI, VGA, dual-link DVI and HDMI). It also can support other peripherals that use the Thunderbolt 2 standard.

In the US (and many other countries), site sponsor Other World Computing sells Thunderbolt docks and external drives compatible with this Mac and just about all others.
None None
Details: N/A
None None
Details: N/A
4 (3.0) None
Details: Four USB 3.0 ports.
None 1 (RJ-45)
Details: Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n backwards compatible) and Bluetooth 4.0 standard.
None None
Details: N/A
2 (Built-in) 1
Details: Single "headphone/optical digital audio output (minijack)."
1 1
Details: Single "headphone/optical digital audio output (minijack)" also supports the Apple iPhone headset with microphone.
1 None
Details: N/A
1 None
Details: 100V-240V (50 Hz to 60 Hz, single phase), Apple does not specify maximum wattage.

Global original prices for the iMac "Core i5" 3.2 27" (5K, Late 2015) in 34 different countries and territories follow; organized alphabetically by region.

For global original prices for Intel Macs in one particular country on a single page, please refer to EveryMac.com's Global Original Prices section.

Original Prices - North & South America

C$2299, C$2599 R$16.999, R$18.999
MXN $37,999, $41,999 US$1799, US$1999*

Original Prices - Europe

¤euro;2099, ¤euro;2299 ¤euro;2129, ¤euro;2329
DKK 15,999, 17,999 ¤euro;2149, ¤euro;2349
¤euro;2099, ¤euro;2299 ¤euro;2099, ¤euro;2299
¤euro;2149, ¤euro;2349 ¤euro;2129, ¤euro;2329
¤euro;2058,62, ¤euro;2252,00 ¤euro;2129, ¤euro;2329
NOK 20.490, 22.490 ¤euro;2149, ¤euro;2349
¤euro;2129, ¤euro;2329 SEK 19.995, 21.995
CHF 2'049, 2'279 £1449, £1599

Original Prices - Asia

RMB 13,488, 14,988 HK$13,888, HK$15,488
Rs 148,900 N/A
¥208,800, ¥238,800 KRW 2,490,000, 269,000
RM 7,999, 8,999 PHP 93,990, 103,990
S$2,688, S$2,988 NT$61,900, NT$68,900
THB 67,900, 74,900 VND 43,880,000, 49,880,000

Original Prices - Australia & New Zealand

A$2799, A$3099 NZ$3249, NZ$3599

If you have additional original prices for this model, please get in touch. Thank you.


Ten of the most popular Q&As about the iMac models follow.



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