New iMac 24-inch (2021, Apple M1) vs iMac 27-inch (2020. Intel): Which is the best iMac for you?

(Pocket-lint) – Apple has revealed its new iMac – available in a single 24-inch size, it brings Apple’s own M1 processors to the iMac lineup as well as a new, thin-bezel design and seven colour finishes. 

Here we’re pitching it alongside the 2020 27-inch model featuring Intel processors. We’re expecting this version to be replaced by a new-style, Apple M1-powered model in due course, perhaps with a 32-inch size – certainly, it’s set to be bigger than the 27-inch size we believe. That model will probably have an upgraded Apple Silicon processor, maybe the M2. 

The old 2019 21.5-inch iMac model seems to still be available, but we suspect Apple will just be selling off old stock. 

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Design

  • 2020 iMac: Familiar aluminium design with a black display surround
  • 2021 iMac: New thinner design, seven different colour finishes

The iMac 2021 takes the iMac design up a level. It’s still very recognisable as an iMac and has the same ‘strip’ under the display, but is significantly thinner, without the bulge around the stand. There are also much thinner bezels with a white surround instead of black. 

Crucially the 2021 iMac is now available in seven different colour finishes, however, not all are available to all buyers. There are two different models with very small differences. Primarily this is in the graphics, which we’ll come onto shortly, and two additional USB-C ports on the higher-end model. But whereas the ‘two ports’ model is available in four finishes, the more expensive ‘four ports’ model is available in all seven. 

The 2019/2020 iMac retains the familiar aluminium design with a black display surround. 

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Displays

  • 2020 iMac: 5K 27-inch display
  • 2021 iMac: 24-inch 4.5K display

The older 2020 iMac features a 5K 27-inch display which has been in use for several years – as we’ve said above we expect it to be replaced by a larger model at some point soon, perhaps 32-inches. The new 2021 iMac introduces a 24-inch 4.5K display with smaller bezels than the 27-inch. 

The 2019 21.5-inch iMac still appears to be available, though expect it to go end-of-life soon. 

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Processor and graphics

  • 2020 iMac: Various Core i5/i7 options topped out by 3.6Ghz 10-core Core i9-10900K, AMD Radeon Pro graphics
  • 2021 iMac: 8-core Apple M1 processor with 7 or 8 core graphics

The 2020 iMac is available with Intel’s 10th Generation Core i processors (Comet Lake) in 6- and 8-core variants of the Core i5 and i7. You can also upgrade to the range-topping 3.6Ghz 10-core Core i9-10900K that’ll Turbo Boost to 5GHz. We had this in our review model and as you’d expect, it absolutely flies.

For the 2021 iMac, both two-port and four-port models have an 8-core Apple M1 processor under the hood. The graphics are where things differ slightly, with 7 or 8 core graphics respectively. The graphics options on the 2020 Intel iMac are varied, with several AMD Radeon Pro options, maxxing out at the AMD Radeon Pro 5700 XT with 16GB of GDDR6 memory. 

Storage and peripherals

  • 2020 iMac: dual USB-C/Thunderbolt 3, four USB-A ports and an SD card slot
  • 2021 iMac: Dual Thunderbolt/USB 4 ports, extra pair of USB-C ports on four-port model
  • All iMacs come with a Magic Keyboard and Magic Mouse, 2021 iMac available with Touch ID version of Magic Keyboard

The two-port 2021 iMac gives you dual Thunderbolt/USB 4 ports, while the four-port version gives you two additional USB-C ports. 

There are stacks of storage options on the 2020 Intel iMacs and you can specify up to a huge 8TB of storage, On the 2021 M1 iMacs though, things are a little more limited – we know the M1 chip is currently limited to 2TB of storage, and you can specify this on the four-port version. On the two-port version you can only get up to 1TB of storage. 

The 2020 Intel iMac has two dual USB-C/Thunderbolt 3, four USB-A ports and an SD card slot. So the USB-A and SD slots are gone on the 2021 version. The headphone jack moves from the rear on the 2020 model to the side on the 2021 iMac and the Ethernet port moves to the power brick (yes really), as part of the magnetically attached power cable. 

All iMacs come with a Magic Keyboard and Magic Mouse, but the high-end four-port 2021 iMac has a special Magic Keyboard with Touch ID. You can also upgrade the standard Magic Keyboard on the two-port version to the Touch ID model. 

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Verdict

The 2021 24-inch iMac is a clear step forward, but while it clearly supercedes the 2019 21.5-inch iMac, it’s not a complete replacement for the 2020 27-inch model. That’s because of the storage, processor and graphics options available on that model – and the power of the high end Core i7 and Core i9 options. 

We expect there to be a new larger iMac this year to replace the 27-inch model as well, probably with a new M2 processor. 

Writing by Dan Grabham.

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Apple Brings M1 to iMac and iPad Pro

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Apple is continuing its move from Intel to Arm on the desktop, putting its M1 processor new line of iMacs and in the iPad Pro. Both were announced at Apple’s “Spring Loaded” virtual event, and are the first time each of those product lines is using the new chip. Previously, the iPad Pro used Apple’s custom A-series chips, while the iMac used Intel processors.

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The new iMacs come in seven colors: blue, green, pink, silver, yellow, orange and purple, and are somewhat reminiscent of the iMac G3. They are built from the ground up for the new chips, unlike the 13-inch MacBook Pro, MacBook Air and Mac Mini, which used existing chassis. The new iMac has a redesign with a much-smaller logic board with two tiny fans. Apple says these small fans will keep the computer under 10 decibels, which the human ear shouldn’t be able to hear. It’s just 11.5 millimeters thin. Apple says the iMac is 85% faster than the previous 21-inch model, which used Intel chips. It also says graphics are up to 2x faster than previous models. In Final Cut, Apple is claiming up to four streams of footage in 1080p, or one in 4K. The company took time to focus on iOS apps working on macOS, as well as the broad range of compatible apps that have come to M1 since it launched last year. The new display is 24-inches diagonally and has narrow bezels, with a 4480 x 2520 resolution and 500 nits of brightness. It also uses TrueTone, like the laptops, to change color temperature based on your surroundings.

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The camera, microphones and speakers are also getting upgraded. The camera is a 1080p FaceTime sensor, higher than the 720p we see in the MacBook laptops. The microphones use beam forming to focus on your voice and avoid background noise. This should all help out in work-from-home situations.

The speakers have increased amounts of power, with increased bass response. The full system is six speakers, including tweeters and woofers. With Dolby Atmos, it supports surround sound.

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The M1 iMac has 4 USB-C ports, including 2 Thunderbolt ports, with support for a 6K display. There’s a new magnetic power connector, with a woven cable, that connects to the power adapter. If you want wired connectivity, Ethernet connects to the power adapter and is routed to the system.

The keyboard has new emoji, spotlight, and do not disturb keys. A separate model will have Touch ID on the desktop for the first time. The Magic Mouse and Magic Trackpad will also have new color-matched aluminum.

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The new iMac starts at $1,299 and will be available to order on April 30, shipping in May. At that price you get an 8-core CPU, 7-core GPU, 8GB of RAM and a 256GB SSD, as well as two Thunderbolt ports. At $1,499, that bumps up to an 8-core GPU and also adds two USB 3 Type-C ports.



iPad Pro

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iPadOS will take advantage of M1 as well, being the first non-macOS device to use the new design. Apple said it will offer a 50% jump over the previous iPad Pro. The GPU will be a 40% increase over the last model.

This replaces the A-series chips that Apple previously used in the iPad Pro (and currently uses in the iPhone and other iPads).

Additionally, Apple is touting storage access that is twice as fast as its predecessor, as well as a new 2TB configuration. Notably, the new iPads will have the same 8GB and 16GB RAM options as other M1 devices.

The USB-C port has been upgraded to Thunderbolt with USB 4 support, with four times more bandwidth over the the USB-C port on the previous iPad Pro. It supports more displays and storage as well.

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Apple has also added 5G to iPad Pro, making this the first M1 device to feature the technology, and it will support millimeter wave in the United States.

There’s a TrueDepth camera in the front, and the iPad Pro has a LiDAR camera on the back for AR applications. The TrueDepth shooter has a 12MP ultra wide camera, which can keep people in view from a distance on video calls, using machine learning to move the frame.

Apple is changing up the display technology, too. It’s moving the 12.9-inch iPad to the same tech as the Pro Display XDR. It’s called Liquid Retina XDR, with 1,000 nits of brightness and 1,600 nits at its peak. It also has the same 1,000,000:1 contrast ratio.

The 12.9 inch iPad Pro will use a mini-LED display, and the screen is comprised of 10,000 of them. This is Apple’s first time using the technology, which is also rumored to move into MacBooks later in the year. It will also support HDR formats like Dolby Vision and HDR 10. The 11-inch iPad Pro is sticking with an LED “liquid retina” screen.


 


The 11-inch iPad Pro will start at $799. The 12.9-inch model with the XDR display starts at $1,099. Orders open April 30, with shipments starting in the second half of May.