Hands-On With Apple's New 27-Inch 5K 8-Core iMac

Apple in March introduced a refresh for its 21.5 and 27-inch 4K and 5K iMac models, which did not receive an update in 2018. The new ‌iMac‌ models feature the same design as the previous models, but have upgraded internals, including 8th and 9th-generation Coffee Lake processors from Intel.

In our latest video, we checked out the 27-inch 5K ‌iMac‌ with 16GB RAM, a 512GB SSD, Radeon Pro Vega 48 graphics, and the high-end 3.6GHz 8-core 9th-generation Core i9 Coffee Lake processor.


Apple hasn't updated the design of the ‌iMac‌ for six years. The slim unibody design that we're familiar with was first introduced in November 2012, and since then, there haven't been any design updates (with the exception of some display changes and port refreshes), which is a bit disappointing.

The 2019 21.5 and 27-inch iMacs continue to feature a slim 5mm display, aluminum stand, aluminum border at the bottom of the machine and relatively thick top and side bezels.

Both ‌iMac‌ sizes feature two Thunderbolt 3 USB-C ports, four USB-A ports, an SD card slot, a headphone jack, and an Ethernet port, with support for one 5K display or two 4K displays. On the 27-inch model, RAM is user upgradeable through a slot in the back of the machine, so upgrading the RAM more affordably after purchase is an option.

The specific model that we tested uses Apple's highest-end ‌iMac‌ processor, the 9th-generation 8-core version from Intel. It's outfitted with 16GB RAM, a Radeon Pro Vega 48 graphics card, and 512GB of storage, making it a higher-end option priced at $3,449 that's ideal for creatives and professionals who need a lot of processing and graphics power.

For work like video editing, intensive photo editing, 3D modeling, and other tasks, you're going to want the best processor and graphics card you can get as these elements are not upgradeable after purchase.

Based on benchmarks, Apple's new 2019 ‌iMac‌ models offer significant speed improvements over the prior 2017 models. Multi-core performance on the machine we tested is up to 66 percent faster, and while single-core gains aren't quite as impressive, it's still approximately 6 to 11 percent faster on average.

This particular high-end ‌iMac‌ with 8-core chip is actually comparable to the 2017 ‌iMac‌ Pro with a 10-core chip. In real-world testing, performance was impressive and the ‌iMac‌ was more than capable of handling our video editing workflow.

Whether or not the 2019 ‌iMac‌ is worth the upgrade depends on your current machine. If you're using a much older model you're going to see significant speed improvements with the latest processors, but compared to something like a 2017 ‌iMac‌, it's probably not worth shelling out the extra cash at this time because the processors are the bulk of what's new.

The 27-inch ‌iMac‌ that we tested is ideal for system-intensive workflows, but if you just need a machine for browsing the web, light photo editing, sending email, and other tasks, one of the more affordable 27-inch machines or even the smaller 21.5-inch iMacs will be a better pick.

If you're in the market for a new ‌iMac‌ and are trying to decide which one to get, make sure to check out our iMac Buyer's Guide.

What do you think of Apple's 2019 ‌iMac‌ refresh? Are you picking up a new machine? Let us know in the comments.

Related Roundup: iMac
Buyer's Guide: iMac (Buy Now)
Related Forum: iMac

Popular Stories

New Things Your iPhone Can Do in iOS 18

18 New Things Your iPhone Can Do in iOS 18.2

Wednesday November 27, 2024 5:05 am PST by
Apple is set to release iOS 18.2 in early December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. There are a handful of new non-AI related feature controls incoming as...
Whatsapp Feature

WhatsApp to Drop Support for These iPhones Starting May 2025

Monday December 2, 2024 2:57 am PST by
WhatsApp is set to end support for iOS versions older than iOS 15.1 from May next year, removing the chat platform's compatibility with several iPhone models in the process. From May 5, 2025, WhatsApp will no longer be compatible with iPhone 5s, iPhone 6, and iPhone 6 Plus models. Users with those devices won't be able to access the encrypted chat service after the specified date unless they ...
iphone 16 pro models 1

12 Reasons to Wait for Next Year's iPhone 17

Friday November 29, 2024 5:17 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different – already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
Apple AI Command Center Concept Mock 3

Apple Expected to Launch This All-New Device Next Year

Wednesday November 27, 2024 1:05 pm PST by
Apple is expected to kick off 2025 by launching an all-new smart home hub, also referred to as a "command center," as early as March. The hub is expected to feature around a six-inch display that can be attached to a tabletop base with a speaker, or mounted on a wall. The device is said to run a new "homeOS" operating system with a customizable widget-focused home screen, and it is expected...
airpods pro 2 gradient

AirPods Pro 3 Expected Next Year: Here's What We Know

Thursday November 28, 2024 3:30 am PST by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch sometime in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as...
Cyber Monday Deals Feature 2022

Apple Cyber Week Deals Available Now: AirPods, iPads, and More

Sunday December 1, 2024 7:52 am PST by
Although Black Friday has ended, Cyber Week is here and you can find great deals on numerous Apple devices right now. This includes big savings on AirPods, Apple Watch, MacBook Air, iPad, and more. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Specifically,...
iPhone 17 Pro Dual Tone Rectangle Feature 1

iPhone 17 Pro Already Rumored to Have These 8 New Features

Wednesday November 27, 2024 12:19 pm PST by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch for 10 more months, there are already plenty of rumors about the devices. An imaginative iPhone 17 Pro concept based on rumors Below, we recap key changes rumored for the iPhone 17 Pro models so far: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro ...
maxresdefault

The MacRumors Show: iPhone 17 Designs Revealed!

Friday November 29, 2024 9:34 am PST by
On this week's episode of The MacRumors Show, we discuss the recently leaked design of the iPhone 17 "Air" and iPhone 17 Pro. Subscribe to The MacRumors Show YouTube channel for more videos Earlier this week, a report from The Information's Wayne Ma revealed that the iPhone 17 Air will have a thickness of between 5mm and 6mm, which would make it the thinnest iPhone ever. In comparison, iPhone ...

Top Rated Comments

PickUrPoison Avatar
74 months ago
I saw the headline "8-core" and for a second I was excited that perhaps there was some new unannounced iMac model, but then looking at the photo, it immediately killed the excitement.

Those big. fat. bezels. In 2019.
I don’t really understand why people are so obsessed with thinner bezels.
Score: 53 Votes (Like | Disagree)
PickUrPoison Avatar
74 months ago
<snip>
Now PCs look better than the fat bezel 2019 iMac.
They really don’t.

It looks like a typical plasticky piece of crap. Just having a thinner bezel doesn’t make it more attractive.
Score: 21 Votes (Like | Disagree)
BuCkDoG Avatar
74 months ago
I saw the headline "8-core" and for a second I was excited that perhaps there was some new unannounced iMac model, but then looking at the photo, it immediately killed the excitement.

Those big. fat. bezels. In 2019.
Does the bezel REALLY matter to you that much on a 27" display? Honestly I think you're really overreacting.
Score: 18 Votes (Like | Disagree)
Freida Avatar
74 months ago
Macrumors, if you are going to do an article so late, can you please be a little more thorough rather than super minimalistic approach that for more advanced user is not very useful? Please?
Score: 15 Votes (Like | Disagree)
trifid Avatar
74 months ago
I saw the headline "8-core" and for a second I was excited that perhaps there was some new unannounced iMac model, but then looking at the photo, it immediately killed the excitement.

Those big. fat. bezels. In 2019.
Score: 11 Votes (Like | Disagree)
Apple Knowledge Navigator Avatar
74 months ago
Still one fan though? That alone would have me worried. The cooling system on the iMac Pro is much better designed.
Score: 10 Votes (Like | Disagree)