Compared: 2020 27-inch iMac vs 2019 iMac 5K

Apple on Tuesday unveiled a new generation of 27-inch iMac with faster processors, the T2 chip and only SSD storage options. Here’s what’s new to the 2019 iMac 5K – and if it’s worth the upgrade.

It’s not the drastic iMac overhaul that many users have been waiting for, but it modernizes the iMac form factor with some of the latest features from Apple and the latest available hardware from Intel.

While the changes are incremental, there are some notable updates. Here’s how the new 2020 27-inch iMac compares to the previous 2019 iMac 5K model.


10th Generation Intel 27-inch (27-inch, 2019) iMac (2020) iMac 5K processor
starts with a 3.1GHz 6-core Core i5 processor with Turbo Boost up to 4.5GHz 8th or 9th Gen Intel Core
Starts with 3 GHz 6-core Intel Core i5 with Turbo Boost up to 4.1 GHz Radeon Pro 5300 graphics with 4 GB GDDR6 memory
Configurable up to Radeon Pro 5700 XT with 16 GB of memory Radeon Pro 570X with 4 GB of GDDR5 memory
Configurable up to Radeon Pro Vega 48 with 8 GB RAM 8 GB base
Configurable up to 128 GB base 8 GB
Configurable up to 128 GB Internal storage 256 GB internal SSD (base)
SSD configurable up to 8 TB
No Fusion Drive1TB Fusion Drive Base
SSD configurable up to 2 TB Display Retina 5120 x 2880 display
5120 x 2880 True Tone display 802.11ac Wi-Fi connectivity
Bluetooth 5.0
10 Gb Ethernet available for $ 100,802.11 ac Wi-Fi
Bluetooth 4.2 Microphone + Camera 1080p FaceTime Camera
Studio-quality 720p FaceTime camera with three microphones
Standard microphone Video output Up to two 6K at 60Hz, one 5K at 60Hz, or two 4K at 60Hz displays One 5K at 60Hz or two 4K at 60Hz displays Special Features T2 Chipset
Hey Siri support
Nanotextured Glass ($ 500 upgrade) N / A Price Starts at $ 1,799, configurable up to $ 8,799 when specs out
Best prices for the 2020 iMac 27 “starting at $ 1,799, configurable up to $ 6,399 if specified

Processor, RAM and graphics

The 2020 27-inch iMac models feature incrementally updated Intel chips – so no Apple silicon here. That being said, the performance gains are measurable.

Apple claims the new 10th generation Intel processors deliver up to 65% faster performance. Likewise, on a graphics front, the new AMD Radeon Pro options can bring users up to 55% better graphics performance.

RAM can be upgraded on a 27 inch iMac

The previous iMac 5K model had 8th or 9th generation Intel processors, depending on the specific level.

Internal storage

Apple has removed the Fusion Drive from the new 27-inch iMacs. For users, that means you’ll always have top-notch storage performance thanks to the full SSD lineup.

There are a few tradeoffs when it comes to actual storage space. This year’s base 27-inch iMac starts with a 256GB SSD, down from the 1TB Fusion Drive included with the previous generation.

For those who can afford it, the 27-inch iMac can be configured with a lot more storage. The previous model was completed with a 2TB SSD, while the new 2020 update can be customized with up to 8TB SSD.


Resolution, aspect ratio, pixels per inch, and brightness are all exactly the same between the 27-inch iMac 2020 and the 2019 iMac 5K. But there are a few notable differences.

2020 27-inch iMac 5K display

2020 27-inch iMac 5K display

The new iMac model supports Apple’s True Tone technology, which adjusts the screen color temperature according to the user’s environment. Apple says it makes the viewing or engineering experience more enjoyable.

For an additional $ 500, users can also opt to upgrade to nano-textured glass. First introduced on the Pro Display XDR, the upgrade adds high-quality anti-glare technology to the display glass.

Other considerations

The 27-inch iMac is Apple’s first all-in-one to sport a T2 chipset. This activates Hey Siri, introduces improved security features, and may even speed up some workflows related to video encoding.

Ports on the back of the 2020 27-inch iMac

Ports on the back of the 2020 27-inch iMac

Compared to the previous generation, the 2020 27-inch iMac is expected to offer better video and audio recording experience. That’s thanks to a new 1080p FaceTime camera and an array of three “studio-grade” microphones similar to that of the 16-inch MacBook Pro.

While the iMac 2020 update does not introduce support for Wi-Fi 6, it does increase the Bluetooth specification to 5.0 (from 4.2). Additionally, users can now choose to add a 10GB Ethernet port for a $ 100 upgrade.

Our conclusion

The rear of the 2020 iMac 27-inch

The rear of the 2020 iMac 27-inch

Along with the standard processor and GPU bumps, the 2020 27-inch iMac features some notable upgrades in the latest iteration. Users who have been waiting for an update from an older iMac may be right to do so.

That being said, the upgrades here are pretty gradual. We haven’t seen a major overhaul, as many users had expected. Likewise, we are in the midst of a major architectural transition to Apple Silicon.

For these reasons, users who have recently purchased a new Apple desktop computer may be better served while they wait for a more substantial upgrade to arrive. Patience will probably pay off.

Lowest iMac Prices

At the time of publication, both models qualify for triple-digit savings with an exclusive coupon and / or instant discounts. To view applicable coupon codes and instructions, click the green price tag icon in the price guide next to the corresponding prices.

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