A16 Bionic Chip in iPhone 14 Reportedly Set to Be Based on '4nm' Process [Updated] - MacRumors
Skip to Content

A16 Bionic Chip in iPhone 14 Reportedly Set to Be Based on '4nm' Process [Updated]

The chip powering the next-generation iPhone will reportedly be based on a "4nm" process, an even smaller process compared to the 5nm process used in the iPhone 12 and iPhone 13 lineups, according to a paywalled preview of an upcoming report from DigiTimes.

m1 4nm feature2
Last year, Apple adopted a 5nm process with the A14 Bionic chip in the latest iPad Air and the iPhone 12 lineup. With the iPhone 13, it used an enhanced iteration of the 5nm process. For the iPhone 14, the report claims Apple and its chipmaking partner TSMC are looking to adopt a "4nm" process for the A16 Bionic, the likely name for the chip powering the next-generation iPhone.

A smaller process reduces a chip's physical footprint and offers improved performance and enhanced energy efficiency. A report yesterday by The Information claimed that TSMC and Apple are facing technical challenges in producing a 3nm chip, possibly being a reason the iPhone 14 will feature a "4nm" process instead.

Separate reports from earlier in the year have suggested that Apple has booked all of TSMC's production capacity for the ‌3nm‌ process, which could instead debut in the iPhone 15 and next-generation Apple silicon Mac computers in several years.

With the iPhone 13 and iPhone 13 Pro already released, we now await what Apple has in store for the iPhone 14. While we're still a little under a year away from its launch, rumors suggest that the iPhone 14 will feature one of the most significant iPhone redesigns of the past several years. Get caught up on the latest rumors about Apple's next-generation iPhone using our roundup.

Update: While the ‌DigiTimes‌ report said "Apple will likely adopt TSMC's 4nm process," TSMC refers to the process as "N4P" and describes it as a "third major enhancement of TSMC's 5nm family."

Related Forum: iPhone

Popular Stories

Apple Foldable Thumb

Foldable iPhone 'Ultra' Still on Track for September Debut

Monday June 22, 2026 6:27 am PDT by
Apple's first foldable iPhone remains on track for a September debut, despite rumors to the contrary, based on a new report by China Securities Journal (via DigiTimes). According to the report, which cites a source at an Apple supplier, the company recently started delivering components in small batches for Apple's first foldable iPhone. The supplier also reportedly received guidance...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 17, 2026 10:39 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...
Apple 2026 Back to School Graphic

Apple's 2026 Back to School Offer Just Went Live in Select Countries

Wednesday July 15, 2026 11:48 am PDT by
Apple's annual Back to School promotion is now live in select countries in Asia, including China, India, Malaysia, the Philippines, Singapore, Taiwan, Thailand, and Vietnam. The offer provides college students and educational staff with a free item with the purchase of an eligible Mac or iPad model. The exact offer varies by country, with options including a pack of four AirTags, AirPods 4,...

Top Rated Comments

slplss Avatar
61 months ago
Getting closer to 0nm.
Score: 37 Votes (Like | Disagree)
cihag Avatar
61 months ago

rumors suggest that the iPhone 14 will feature one of the most significant iPhone redesigns of the past several years.
Hmm, back to curves instead of flat edges, I guess?
Score: 19 Votes (Like | Disagree)
61 months ago
A4 was 45nm from 45 to 4 in 12 years. or 45 to 5 in 10. Freaking remarkable.
Score: 18 Votes (Like | Disagree)
61 months ago
Hate to burst everyone's bubble but there is nothing on these chips that is actually 4nm in dimensions just like the current 5-6-7nm processes that every chip manufacturer is making. It's all a historical node naming convention.
Score: 17 Votes (Like | Disagree)
61 months ago

I still don’t understand what is 5 mm. The chip? The tools that made the chip?
Nothing is 5nm. It's a naming convention that hasn't been reality for multiple generations of computer chips.
Score: 13 Votes (Like | Disagree)
WWPD Avatar
61 months ago

What happens next? 1nm and then what?
Bio-neural gel packs.
Score: 13 Votes (Like | Disagree)