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Apple iMac "Core i9" 3.6 27" (5K, 2019) Specs

Identifiers: Retina 5K, 27-Inch, 2019 - BTO/CTO - iMac19,1 - A2115 - 3194

All iMac Models | All 2019 Models | Dynamically Compare This Mac to Others


27-Inch Early 2019 5K iMacThe iMac "Core i9" 3.6 27-Inch Aluminum (Retina 5K, 2019/Coffee Lake) technically is a "configure-to-order" configuration of the iMac "Core i5" 3.1 27-Inch (5K, 2019) or iMac "Core i5" 3.7 27-Inch (5K, 2019), but also is documented as a separate model for reader convenience. Other than processor (and the corresponding level 3 cache), this model can be configured identically to its stock brethren.

The iMac "Core i9" 3.6 27-Inch Aluminum (Retina 5K, Early 2019) features a 14-nm "9th Generation" 3.6 GHz Intel "Core i9" processor (I9-9900K) with eight independent processor "cores" on a single chip, a shared 16 MB level 3 cache, 8 GB of easy to upgrade 2666 MHz DDR4 SDRAM, a 1 TB or 2 TB Fusion Drive, and a Radeon Pro 575X or Radeon Pro 580X graphics processor with 4 GB or 8 GB of dedicated GDDR5 video 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 3 (USB-C) ports, Gigabit Ethernet, 802.11ac Wi-Fi, and Bluetooth 4.2. It does not have a T2 chip.

Compared to its predecessor, this model is very similar externally and internally, but it has a more advanced processor and architecture as well as graphics processor.

By default, the "2019" iMac models shipped with a compact aluminum Apple Magic Keyboard and the multi-touch "Magic Mouse 2". For an additional US$30, you could upgrade from the default keyboard to the "Magic Keyboard with Numeric Keypad" and for an additional US$50, you 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 "2019" Aluminum iMac models? (In-Depth)
  • What are all of the differences between the "2019" Aluminum iMac models and their "Mid-2017" predecessors? (In-Depth)
  • What are the "pros and cons" of the "Early 2019" and other "Tapered Edge" iMac models? Is one right for me? (Quick Read)

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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.


March 19, 2019 August 4, 2020
1 (8 Cores) 64-Bit
27838 32907
4570 32783
5026 34929
6166 32200
1244 8284
3.6 GHz Core i9 (I9-9900K)
Details: This model is powered by a 14 nm, 64-bit "9th Generation/Coffee Lake" Intel Core i9 (I9-9900K) processor which includes eight independent processor "cores" on a single silicon chip.

This system also supports "Turbo Boost" -- which "automatically increases the speed of the active cores" to improve performance when needed (up to 5.0 GHz for this model) -- and "Hyper Threading" -- which allows the system to recognize sixteen total "cores" or "threads" (eight real and eight virtual).

Also see: How fast are the "2019" iMac models compared to one another? How fast are they compared to the "Mid-2017" models that preceded them and the iMac Pro?
5.0 GHz N/A
LGA 1151* Integrated
8 GT/s (DMI3)* 3.6 GHz (Built-in)
EFI 64-Bit
32k/32k x8 256k x 8/16 MB (L3)
PC4-21300 DDR4 2666 MHz
Details: Supports 2666 MHz PC4-21300 DDR4 SDRAM SO-DIMMs (260-pin).

Also see: How do you upgrade the RAM in the "2019" 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 128 GB*
Details: *By default, 8 GB of RAM is installed as two 4 GB memory modules (and two slots are unoccupied). At the time of purchase, Apple offered custom configurations of 16 GB, 32 GB, and 64 GB of memory for an extra US$200, US$600, and US$1000, respectively. As first determined by site sponsor OWC, it actually can support up to 128 GB of RAM with four 32 GB memory 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.

Also see: Actual Max RAM of All G3 & Later Macs.
None* 4
Radeon Pro 575X/580X* Dedicated
Details: *Depending on its base configuration, this model has either an AMD Radeon Pro 575X graphics processor with 4 GB of dedicated GDDR5 video memory or an AMD Radeon Pro 580X graphics processor with 8 GB of dedicated GDDR5 video memory. At the time of initial system purchase, the high-end base configuration (MRR12LL/A) can be configured with an AMD Radeon Vega 48 graphics processor with 8 GB of dedicated HBM2 video memory for an extra US$450.

Which "Tapered Edge" iMac have video processors with dedicated memory? Which have integrated memory?
4, 8 GB* 8 GB*
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, a "wide color" DCI-P3 gamut, and brightness of 500 nits.

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* 3840x2160 x2
Details: *This model can simultaneously support the internal display at full native resolution and up to one 5120x2880 (5K) external display at 60 Hz with support for one billion colors; two 3840x2160 (4K UHD) external displays at 60 Hz with support for one billion colors; or two 4096x2304 (4K) external displays at 60 Hz with support for millions of colors. It supports both extended desktop (second workspace) and video mirroring (internal display duplicated on the external display) modes.
1, 2 TB* (Fusion) N/A
Details: *If configured from the iMac "Core i5" 3.1 27-Inch (5K, Early 2019) (MRR02LL/A) base model, it has a 1 TB Fusion Drive. If configured from the iMac "Core i5" 3.7 27-Inch (5K, Early 2019) (MRR12LL/A) base model, it has a 2 TB Fusion Drive. The 1 TB Fusion Drive combines a 32 GB SSD and a 1 TB hard drive whereas the 2 TB Fusion Drive combines a 128 GB SSD and a 2 TB hard drive. It has a Serial ATA (6 Gb/s) connector for a 3.5" hard drive and a PCIe connector for the SSD.

At the time of purchase, Apple also offered a 3 TB Fusion Drive and 512 GB, 1 TB, or 2 TB SSDs for an extra charge.

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.

Also see: SSD Compatibility Guide for All G3 & Later Macs.
3.5" (7 mm)* Serial ATA (6 Gb/s)*
None* None
None 10/100/1000Base-T
Details: N/A
802.11ac* 4.2
4 (3.0) None
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.
Magic Keyboard* Magic Mouse 2*
All-in-One 27" iMac Tapered Edge
BTO/CTO Retina 5K, 27-Inch, 2019
A2115 (EMC 3194) iMac19,1
Details: Please note that these identifiers refer to more than one model.

Also see: All Macs with the A2115 Model Number, the 3194 EMC Number, and the iMac19,1 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
X 10.14.4 (18E2034) 15.x (Sequoia)*
10 (64-Bit)* 10 (64-Bit)*
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)
US$2499, US$2699* US$1350-US$1600
Details: *The Core i9 custom processor option was US$500 for iMac "Core i5" 3.1 27-Inch (5K, Early 2019) (MRR02LL/A) and US$400 for iMac "Core i5" 3.7 27-Inch (5K, Early 2019) (MRR12LL/A) for a total price of US$2499 or US$2699, respectively.

Photo Credit: Apple Computer.

Photo Credit: Apple, Inc.


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 3/USB-C) None
Details: This model has two Thunderbolt 3 ports. These two ports support DisplayPort, Thunderbolt (up to 40 Gbps), and USB 3.1 Generation 2 (up to 10 Gbps). Adapters also are available to use Thunderbolt 2, HDMI, DVI, and VGA.

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.

What is Thunderbolt 3? What is the difference between USB-C and Thunderbolt 3? What Thunderbolt 3 adapters and docks are available?
None None
None None
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 4.2 standard.
None None
1 (Built-in) N/A
1 1
1 None
1 None

Global original prices for the iMac "Core i9" 3.6 27" (5K, 2019) 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$3249, C$3559 R$21.599, R$23.399
MXN $61,499, $66,499 US$2499, US$2699*

Original Prices - Europe

€2839, €3079 €2839, €3079
DKK 22,099, 23,939 €2939, €3179
€2839, €3079 €2839, €3079
€2939, €3179 €2939, €3179
€2745,15, €2977,21 €2839, €3079
NOK 28.190, 30.390 €2939, €3179
€2839, €3079 SEK 30.795, 33.395
CHF 2'797.50, 3'037.80 £2399, £2609

Original Prices - Asia

RMB 19,564, 21,211 HK$19,299, HK$20,919
N/A N/A
¥275,800, ¥297,800 KRW 3,182,500, 3,440,000
RM 10,679, 11,559 PHP 142,990, 155,990
S$3,589, S$3,889 NT$79,420, NT$85,940
THB 87,900, 95,900 N/A

Original Prices - Australia & New Zealand

A$3869, A$4189 NZ$4189, NZ$4529

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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