Apple iMac "Core i7" 4.2 27" (5K, Mid-2017) Specs
Identifiers: Retina 5K, Mid-2017 - BTO/CTO - iMac18,3 - A1419 - 3070
All iMac Models | All 2017 Models | Dynamically Compare This Mac to Others
The iMac "Core i7" 4.2 27-Inch Aluminum (Retina 5K, Mid-2017/Kaby Lake) technically is a "configure-to-order" configuration of the iMac "Core i5" 3.5 27-Inch (5K, Mid-2017) or iMac "Core i5" 3.8 27-Inch (5K, Mid-2017), 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 i7" 4.2 27-Inch Aluminum (Retina 5K, Mid-2017/Kaby Lake) features a 14-nm "Kaby Lake" 4.2 GHz Intel "Core i7" processor (7700K) with four independent processor "cores" on a single chip, an 8 MB shared level 3 cache, 8 GB of easy to upgrade 2400 MHz DDR4 SDRAM, a 1 TB or 2 TB Hard Drive+SSD "Fusion" drive, and either a Radeon Pro 575 graphics processor with 4 GB of VRAM or a Radeon Pro 580 graphics processor with 8 GB of VRAM. 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.
Compared to its predecessor, this model essentially has the same external enclosure, but it has a more advanced processor and architecture, a faster video card, a brighter display, and Thunderbolt 3 (USB-C) ports.
By default, the "Mid-2017" 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 "Mid-2017" Aluminum iMac models? (In-Depth)
- What are all of the differences between the "Mid-2017" Aluminum iMac models and the "Late 2015" models replaced? (In-Depth)
- What are the "pros and cons" of the "Mid-2017" and other "Tapered Edge" iMac models? Is one right for me? (Quick Read)
Buy This Mac or Trade-In Yours at site sponsor OWC. Click for current options.
Sell This Mac at A+ BBB rated site sponsor Cash For Your Mac. Quick quote!
Upgrade This Mac at site sponsor OWC. Memory, storage & more.
- Tech Specs
- Ports
- Global Original Prices
- Popular Q&As
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.
| Introduction Date: |
June 5, 2017 |
Discontinued Date: |
March 19, 2019 |
| 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 2017. |
| Processors: |
1 (4 Cores) |
Architecture: |
64-Bit |
| Geekbench 2 (32): |
16681 |
Geekbench 2 (64): |
19391 |
| 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 iMac18,3 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. |
| Geekbench 3 (32): |
4162 |
Geekbench 3 (32): |
17197 |
| 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 iMac18,3 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. |
| Geekbench 3 (64): |
4666 |
Geekbench 3 (64): |
18587 |
| 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 iMac18,3 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. |
| Geekbench 4 (SC): |
5581 |
Geekbench 4 (MC): |
18914 |
| 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 iMac18,3 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. |
| Geekbench 5 (SC): |
1119 |
Geekbench 5 (MC): |
4559 |
| 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 iMac18,3 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. |
| Processor Speed: |
4.2 GHz |
Processor Type: |
Core i7 (I7-7700K) |
| Details: |
This model is powered by a 14 nm, 64-bit "Seventh Generation" Intel Core i7 "Kaby Lake" (I7-7700K) processor which includes four independent processor "cores" on a single silicon chip. Each core has a dedicated 256k level 2 cache, shares 8 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 4.5 GHz for this model) -- and "Hyper Threading" -- which enables four hardware processor cores and eight "threads" for software multitasking.
Also see: How fast are the "Mid-2017" iMac models compared to one another? How fast are they compared to the "Late 2015" models replaced and the Mac Pro? |
| Turbo Boost: |
4.5 GHz |
Custom Speeds: |
N/A |
| Processor Upgrade: |
LGA 1151* |
FPU: |
Integrated |
| Details: |
*Officially, Apple provides no information about whether or not the processor in this model can be upgraded. However, the processor is mounted on an industry-standard LGA 1151 socket. The processor is difficult to access, but it is not soldered in place. |
| System Bus Speed: |
8 GT/s (DMI3)* |
Cache Bus Speed: |
4.2 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. |
| ROM/Firmware Type: |
EFI |
EFI Architecture: |
64-Bit |
| L1 Cache: |
32k/32k |
L2/L3 Cache: |
256k x2, 8 MB |
| Details: |
Each core has its own dedicated 256k level 2 cache and the system has 8 MB of shared level 3 cache. |
| RAM Type: |
PC4-19200 DDR4* |
Min. RAM Speed: |
2400 MHz |
| Details: |
Supports 2400 MHz PC4-19200 DDR4 SDRAM SO-DIMMs (260-pin).
Also see: How do you upgrade the RAM in the "Mid-2017" Tapered Edge Aluminum iMac models? Is it even possible? What type of RAM do they use? How much RAM does each model actually support? |
| Standard RAM: |
8 GB |
Maximum RAM: |
64 GB* |
| Details: |
*By default, 8 GB of RAM is installed as two 4 GB memory modules (and two slots are unoccupied). Apple offered this model custom configured with 16 GB, 32 GB, or 64 GB for an extra charge. However, upgrading the RAM yourself is quick and easy.
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. |
| Motherboard RAM: |
None |
RAM Slots: |
4 |
| Details: |
This system has four easy-to-access RAM slots and the RAM can be upgraded after purchase. |
| Video Card: |
Radeon Pro 575/580* |
VRAM Type: |
Dedicated |
| Details: |
Depending on its base configuration, this model has either an AMD Radeon Pro 575 graphics processor with 4 GB of dedicated VRAM or an AMD Radeon Pro 580 graphics processor with 8 GB of dedicated VRAM.
Which "Tapered Edge" iMac have video processors with dedicated memory? Which have integrated memory? |
| Standard VRAM: |
4, 8 GB* |
Maximum VRAM: |
8 GB |
| Details: |
*If configured with an AMD Radeon Pro 575 graphics processor, this model has 4 GB of dedicated VRAM. If configured with an AMD Radeon Pro 580 graphics processor, it has 8 GB of dedicated VRAM. Neither can be upgraded after initial system purchase. |
| Built-in Display: |
27" 16:9 Widescreen |
Native Resolution: |
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. |
| 2nd Display Support: |
Dual/Mirroring* |
2nd Max. Resolution: |
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. |
| Standard Storage: |
1, 2 TB* (Fusion) |
Std. Storage Speed: |
N/A |
| Details: |
*If configured from the iMac "Core i5" 3.5 27-Inch (5K, Mid-2017) (MNEA2LL/A), it has a 1 TB "Fusion" Drive (32 GB SSD and 1 TB hard drive). If configured from the iMac "Core i5" 3.8 27-Inch (5K, Mid-2017) (MNED2LL/A), it has a 2 TB "Fusion" Drive (128 GB SSD and 2 TB hard drive). It has a Serial ATA (6 Gb/s) connector for a 2.5" hard drive and a PCIe connector for the SSD.
At the time of purchase, Apple also offered a 3 TB "Fusion" Drive or a 512 GB, 1 TB, or 2 TB SSD all at extra cost.
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. |
| Storage Dimensions: |
3.5" (7 mm)* |
Storage Interface: |
Serial ATA (6 Gb/s)* |
| Details: |
*This model has a SATA III (6 Gb/s) connector for a 3.5" hard drive or SSD as well as a PCIe connector for the SSD. |
| Standard Optical: |
None* |
Standard Disk: |
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? |
| Standard Modem: |
None |
Standard Ethernet: |
10/100/1000Base-T |
| Standard AirPort: |
802.11ac* |
Standard Bluetooth: |
4.2 |
| Details: |
*802.11ac Wi-Fi (802.11a/b/g/n backwards compatible) and Bluetooth 4.2 standard. |
| USB Ports: |
4 (3.0) |
Firewire Ports: |
None |
| Details: |
Four USB 3.0 ports. |
| Expansion Slots: |
SDXC SD Card |
Expansion Bays: |
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. |
| Incl. Keyboard: |
Magic Keyboard* |
Incl. Input: |
Magic Mouse 2* |
| Details: |
*By default, this model shipped with a small aluminum wireless compact keyboard (without a numeric keypad) and a wireless "Magic Mouse 2" with multi-touch surface support. For an extra US$30, you could substitute the stock keyboard for a "Magic Keyboard with Numeric Keypad" and for an extra US$50 you could substitute the Magic Mouse 2 for a Magic Trackpad 2 (which provides multi-touch input and Force Touch support). If you really like input devices, you even could equip this iMac with both a Magic Mouse 2 and a Magic Trackpad 2 for an additional US$129. |
| Case Type: |
All-in-One |
Form Factor: |
27" iMac Tapered Edge |
| Details: |
The 27-Inch "Mid-2017" Aluminum iMac model uses a case design that is effectively identical to the earlier "Tapered Edge" iMac models, but the internals are different. Each 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 system sits upon an aluminum "foot" that is 8 inches (20.3 cm) deep. |
| Apple Order No: |
BTO/CTO |
Apple Subfamily: |
Retina 5K, Mid-2017 |
| Apple Model No: |
A1419 (EMC 3070) |
Model ID: |
iMac18,3 |
| Details: |
Please note that these identifiers refer to more than one model.
Also see: All Macs with the A1419 Model Number, the 3070 EMC Number, and the iMac18,3 Model Identifier.
For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section. |
| Battery Type: |
N/A |
Battery Life: |
N/A |
| Pre-Installed MacOS: |
X 10.12.4 (16F2073) |
Maximum MacOS: |
13.x (Ventura) |
| Details: |
This system fully supports the last version of macOS Sierra (10.12) and macOS High Sierra (10.13). Running macOS High Sierra (10.13) or later, this model does support HEVC hardware acceleration.
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.
Finally, this model is fully compatible with macOS Ventura (macOS 13) with the exception of the minor Live Captions in FaceTime, Emoji Dictation, and Reference Mode with Sidecar features. It does not support macOS Sonoma (macOS 14) or later.
Also see: Which Macs are compatible with macOS Ventura (macOS 13)? What are the system requirements? What are the major new features? Do all features work with all supported Macs? |
| Minimum Windows: |
10 (64-Bit)* |
Maximum Windows: |
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. |
| MacOS 9 Support: |
None |
Windows Support: |
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. |
| Dimensions: |
20.3 x 25.6 x 8 |
Avg. Weight: |
21 lbs. (9.54 kg) |
| Details: |
In inches - height by width by depth, (51.6 cm, 65.0 cm, 20.3 cm). |
| Original Price (US): |
US$2299, US$2499 |
Est. Current Retail: |
US$750-US$950 |
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.
| Video (Monitor): |
 2 (Thunderbolt 3/USB-C) |
Floppy (Ext.): |
 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? |
| ADB: |
 None |
SCSI: |
 None |
| Serial (Standard): |
 None |
Serial (Geoport): |
 None |
| USB: |
 4 (3.0) |
Firewire: |
 None |
| Details: |
Four USB 3.0 ports. |
| Modem: |
None |
Ethernet: |
 1 (RJ-45) |
| Details: |
Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n backwards compatible) and Bluetooth 4.2 standard. |
| S-Video Input: |
 None |
S-Video Output: |
 None |
| Microphone: |
 1 (Built-in) |
Sound In: |
 N/A |
| Sound Out: |
 1 |
Headphone: |
 1 |
| Details: |
Single 3.5 mm headphone jack with "support for Apple iPhone headset with microphone." |
| Security (Lock): |
 1 |
Joystick (PC): |
 None |
| Power: |
 1 |
Power Adapter: |
 None |
| Details: |
100V-240V (50 Hz to 60 Hz, single phase), Apple does not specify maximum wattage. |
Global original prices for the iMac "Core i7" 4.2 27" (5K, Mid-2017) 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
| Canada: |
C$3009, C$3319 |
Brazil: |
R$17.399, R$18.599 |
| Mexico: |
MXN $54,499, $59,499 |
United States: |
US$2299, US$2499 |
Original Prices - Europe
| Austria: |
€2659, €2839 |
Belgium: |
€2659, €2839 |
| Denmark: |
DKK 20,379, 22,219 |
Finland: |
€2759, €2939 |
| France: |
€2659, €2839 |
Germany: |
€2659, €2839 |
| Ireland: |
€2759, €2939 |
Italy: |
€2759, €2939 |
| Luxembourg: |
€2571,10, €2745,15 |
Netherlands: |
€2659, €2839 |
| Norway: |
NOK 25.990, 28.190 |
Portugal: |
€2759, €2939 |
| Spain: |
€2659, €2839 |
Sweden: |
SEK 26.795, 29.195 |
| Switzerland: |
CHF 2'579, 2'819 |
United Kingdom: |
£2219, £2429 |
Original Prices - Asia
| China: |
RMB 18,168, 19,808 |
Hong Kong: |
HK$17,728, HK$19,348 |
| India: |
N/A |
Indonesia: |
N/A |
| Japan: |
¥253,800, ¥275,800 |
Korea: |
KRW 2,937,500, 3,195,000 |
| Malaysia: |
RM 10,279, 11,019 |
The Philippines: |
PHP 132,990, 145,990 |
| Singapore: |
S$3,298, S$3,608 |
Taiwan: |
NT$72,900, NT$79,420 |
| Thailand: |
THB 84,900, 90,900 |
Vietnam: |
N/A |
Original Prices - Australia & New Zealand
| Australia: |
A$3479, A$3769 |
New Zealand: |
NZ$3859, NZ$4189 |
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.
Permalink | Report an Error/Typo | Sign Up for Site Update Notices
<< iMac (Home) | Also see: iMac FAQ
Established in 1996, EveryMac.com has been created by experts with decades of experience with Apple hardware. EveryMac.com includes, and always has included, original research incorporating detailed, hands-on inspection of packaging, computers, and devices as well as extensive real-world use. All information is provided in good faith, but no website or person is perfect.
Accordingly, EveryMac.com is provided "as is" without warranty of any kind whatsoever.
EveryMac.com, and the authors thereof, shall not be held responsible or liable, under any circumstances, for any
damages resulting from the use or inability to use the information within. For complete disclaimer and copyright
information please read and understand the Terms
of Use and the Privacy Policy before
using EveryMac.com. Copying, scraping, or use of any content without expressed permission is not allowed, although links to any page are welcomed and appreciated.
