Report: Apple Silicon iMac With Custom GPU to Launch in Second Half of 2021

Apple will debut a powerful custom-designed graphics procesing unit in its first Arm-based iMac which is set to launch in the second half of next year, according to a new report today.

imac 2020 mockup
Codenamed "Lifuka," the self-developed GPU to feature in the Apple Silicon powered ‌iMac‌ will be produced using TSMC's 5-nanometer manufacturing process, and will offer better performance and be more energy efficient than the Intel processor it replaces, according to the Chinese-language newspaper The China Times.

In the past, Apple introduced Mac personal computers with Intel CPUs, equipped with Nvidia or AMD GPUs, but industry insiders pointed out that Apple has cancelled support for AMD GPUs in the macOS Arm 64-bit operating system, indicating that Apple will be adopted in the future. Silicon’s Mac personal computers may use a GPU developed and designed by Apple. Recently, the industry has reported that in addition to Apple Silicon processors, Apple’s iMac desktops launched next year will also be equipped with self-developed and designed Apple GPUs.

According to relevant sources, Apple's self-developed GPU is progressing smoothly. The research and development code is Lifuka. Like the upcoming A14X processor, it is produced using TSMC's 5nm process. Apple has designed a series of processors for Mac personal computers. The new GPU will provide better performance per watt and higher computing performance. It has tile-based deferred rendering technology that allows application developers to write more powerful professional application software and game software.

china times apple silicon roadmap
Apple announced at its WWDC developer conference in June that its Macs will transition from Intel x86-based CPUs to its self-designed Arm-based ‌‌Apple Silicon‌‌ processors over the next two years. Bloomberg has said that Apple is currently developing at least three Mac processors that are based on the 5-nanometer A14 chip that will be used in the upcoming iPhone 12 models.

Apple analyst Ming-Chi Kuo has predicted that the first Mac models to adopt Arm-based chips will be a 13.3-inch MacBook Pro and a 24-inch iMac with a redesigned form factor, with Apple planning to launch the new models in the fourth quarter of 2020 or early in 2021 at the earliest. Prior to the launch of its Arm-based ‌‌iMac‌‌, Apple is expected to refresh the existing Intel ‌‌iMac‌‌.

In contrast to Kuo's prediction, today's report claims Apple's first Arm-based Mac will be a super-lightweight 12-inch MacBook, codenamed "Tonga," that will launch by the end of 2020. In addition, the report says the A14 chip to feature in Apple's upcoming ‌iPhone‌ 12 lineup is codenamed "Sicilian."

Related Roundup: iMac
Buyer's Guide: iMac (Neutral)
Related Forum: iMac

Popular Stories

iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
iphone 17 air iphone 16 pro

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
iPhone 17 Pro on Desk Feature

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...

Top Rated Comments

madmin Avatar
61 months ago
So another year before an Apple Silicon iMac is released. Add another couple of years before I consider it safe to buy myself one ...

Li'fuka :)
Score: 26 Votes (Like | Disagree)
tobiastimpe Avatar
61 months ago
Hmm, they would need to use another letter for the GPU, maybe we could have a G1 GPU chip and then continue on with G2, G3 and G4. And G5 is gonna be too power hungry... ?
Score: 16 Votes (Like | Disagree)
Unami Avatar
61 months ago
Beating intels crappy GPU might be an accomplishment for a first gen GPU, but it's really not the endgame. It has to be at least faster than the amd 5700xt with 16gb ram - everything else would be a step backwards.
Score: 15 Votes (Like | Disagree)
Abazigal Avatar
61 months ago
This makes me wonder if the next iMac is going to be the equivalent of a 27” iPad Pro in terms of form factor.
Score: 13 Votes (Like | Disagree)
Jerion Avatar
61 months ago
Back to another era of Macs being truly differentiated machines. Hedge your bets now or get ready to jump in.

Not a stretch for them to be confident in surpassing Intel in graphics. AMD/Nvidia are a different caliber though. Hope this doesn’t mean the end of eGPU support.
Score: 11 Votes (Like | Disagree)
Janichsan Avatar
61 months ago
[T]he self-developed GPU to feature in the Apple Silicon powered iMac ... will offer better performance and be more energy efficient than the Intel processor it replaces ...
That's an extremely low bar to clear.
Score: 10 Votes (Like | Disagree)