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iMac (Retina 5K, 27-inch, 2019)

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Quick look

Price
£1,7492launch price
Chip
Core i53.0GHz 6-core Intel
CPU
6-coreCPU
GPU
Not available3GPU
Memory
8GBmemory, base
Storage
1TBstorage, base
Display
27-inchdisplay
Released
19 March 20194Available online; Apple gave no in-store day
Security updates
Not available5Security updates

Each figure is from the source marked1 unless it carries its own number.

650 mm516 mm
Drawn to scale from the published dimensions below: the front face. Outline only — the corner radius, where the display sits in the face and the stand’s width are our drawing conventions, not measurements; the display rectangle is Apple’s diagonal at its aspect ratio.

Specifications

Body

Dimensions
516 x 650 x 203 mm
Weight
9.42 kg
Ports
Two Thunderbolt 3 (USB-C) ports, four USB 3 ports, SDXC card slot, Gigabit Ethernet (RJ-45), 3.5 mm headphone jack
Thunderbolt ports
2
Thunderbolt version
Thunderbolt 3
USB-A ports
4
HDMI
No HDMI port.6
SD card slot
Yes
Headphone jack
Yes
Keyboard
Magic Keyboard
Touch ID
No Touch ID.6

Display

Display size
27 in
Resolution
5120 x 2880
Display type
Retina 5K display
Brightness
500 nits
Wide colour (P3)
Yes

Chip and memory

Chip
3.0GHz 6-core Intel Core i5
Apple silicon
Intel processor, not Apple silicon.7
CPU cores
6
Graphics
Radeon Pro 570X with 4GB of GDDR5 memory
Chip options
3.0GHz 6-core Intel Core i5, 3.1GHz 6-core Intel Core i5, 3.7GHz 6-core Intel Core i5, or 3.6GHz 8-core Intel Core i9
Memory (base)
8GB
Memory (maximum)
64GB
Memory options
8GB, 16GB, 32GB or 64GB
Memory upgradeable by user
Yes, as Apple documents8
Storage (base)
1TB
Storage (maximum)
3TB
Storage options
1TB, 2TB or 3TB Fusion Drive, or 256GB, 512GB, 1TB or 2TB SSD

Connectivity

Wi-Fi
802.11ac Wi-Fi
Bluetooth
4.2
Ethernet
10/100/1000BASE-T Gigabit Ethernet (RJ-45)
External displays (base)
2

Camera and audio

Camera
FaceTime HD camera
Speakers
Stereo speakers
Microphones
Microphone

Platform

Shipped with
macOS Mojave9
Newest macOS
macOS Sequoia10
Model identifier
iMac19,110
Part numbers
MRQYxx/A, MRR0xx/A, MRR1xx/A11
Model year
2019

Benchmarks

Geekbench 7 (CPU, single-core)
1,28912
Geekbench 7 (CPU, multi-core)
4,78012

An iMac has no battery, so battery rows do not apply.

Software support

Feature updates until
Not available13
Security updates until
Not available13
Basis
our inference from history14

Previous and next model

Previous model

What changed

Weight
9.44 kg iMac (Retina 5K, 27-inch, 2017)9.42 kg iMac (Retina 5K, 27-inch, 2019)
Chip
3.4GHz quad-core Intel Core i5 iMac (Retina 5K, 27-inch, 2017)3.0GHz 6-core Intel Core i5 iMac (Retina 5K, 27-inch, 2019)
CPU cores
4 iMac (Retina 5K, 27-inch, 2017)6 iMac (Retina 5K, 27-inch, 2019)

Next model

What changed

Weight
9.42 kg iMac (Retina 5K, 27-inch, 2019)8.92 kg iMac (Retina 5K, 27-inch, 2020)
Ports
Two Thunderbolt 3 (USB-C) ports, four USB 3 ports, SDXC card slot, Gigabit Ethernet (RJ-45), 3.5 mm headphone jack iMac (Retina 5K, 27-inch, 2019)Two Thunderbolt 3 (USB-C) ports, four USB-A ports, SDXC card slot (UHS-II), Gigabit Ethernet (RJ-45), 3.5 mm headphone jack iMac (Retina 5K, 27-inch, 2020)
Chip
3.0GHz 6-core Intel Core i5 iMac (Retina 5K, 27-inch, 2019)3.1GHz 6-core 10th-generation Intel Core i5 iMac (Retina 5K, 27-inch, 2020)
Storage (base)
1TB iMac (Retina 5K, 27-inch, 2019)256GB iMac (Retina 5K, 27-inch, 2020)

More on this Mac

Comparisons

Against its own line

Against the rest of the range

Sources

  1. Apple Support (UK) — iMac (Retina 5K, 27-inch, 2019) - Technical Specifications · Default for iMac (Retina 5K, 27-inch, 2019) · Apple’s figure · read 15 Sep 2026

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  2. Apple Newsroom (UK) — iMac gets a 2x performance boost · Apple’s figure · read 15 Sep 2026

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  3. Not published by Apple. Pages checked: Apple Support (UK) — iMac (Retina 5K, 27-inch, 2019) - Technical Specifications; Apple Support (UK) — Identify your iMac model; Apple Newsroom (UK) — iMac gets a 2x performance boost. Read 9 Oct 2026

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  4. Apple Newsroom (UK) — iMac gets a 2x performance boost · Apple’s figure · read 22 Sep 2026

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  5. Security updates: no end date published. Checked: endoflife.date. Read 22 Sep 2026

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  6. No HDMI port. No Touch ID. Checked: Apple Support (UK) — iMac (Retina 5K, 27-inch, 2019) - Technical Specifications. Read 9 Oct 2026

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  7. Intel processor, not Apple silicon. Checked: Apple Support (UK) — iMac (Retina 5K, 27-inch, 2019) - Technical Specifications. Read 15 Sep 2026

    ↩

  8. Apple Support (UK) — Install memory in an iMac · Apple’s figure · read 18 Oct 2026

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  9. Apple Newsroom (UK) — iMac gets a 2x performance boost · Apple’s figure · read 9 Oct 2026

    ↩

  10. Apple Support (UK) — Identify your iMac model · Apple’s figure · read 15 Sep 2026

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  11. Apple Support (UK) — Identify your iMac model · Apple’s figure · read 18 Oct 2026

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  12. Geekbench Browser (Primate Labs) · third-party figure · read 11 Oct 2026

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  13. Feature and security updates: end dates not published by Apple. Checked: endoflife.date. Read 22 Sep 2026

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  14. The newest macOS Apple lists this Mac for is macOS Sequoia; Apple’s macOS 27 Golden Gate list does not name it. endoflife.date shows Sequoia still receiving security updates on 22 September 2026. Apple’s habit of patching the two releases before the newest points to those updates ending around autumn 2027; that is an inference, not a commitment. Source: endoflife.date. Read 22 Sep 2026

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Not published by Apple

iMac (Retina 5K, 27-inch, 2019). Apple doesn’t publish for this Mac: colours, pixel density, refresh rate, nano-texture option, GPU cores, storage upgradeable by user, maximum continuous power. Geekbench 7 Metal: the Mac chart has no Metal score for this Mac (chart read 10 Oct 2026). Pages checked: Apple Support (UK) — iMac (Retina 5K, 27-inch, 2019) - Technical Specifications; Apple Support (UK) — Identify your iMac model; Apple Newsroom (UK) — iMac gets a 2x performance boost, read 9 Oct 2026.