iOS 5.1 Beta Reveals Evidence of Simultaneous Development on A5X and A6 Chips

While Apple has been rumored by several sources to be planning to deploy a quad-core processor as part of what was presumed to be a new "A6" system-on-a-chip in the iPad 3, that assumption was called into question earlier this month with the appearance of a logic board photo showing an "A5X" package instead. Some have suggested that the implication of the package being a beefed-up A5 would limit it to a dual-core processor.

The idea of the package being a smaller upgrade is supported by Apple referring to the application processor as S5L8945X, a part number jump of only five from the S5L8940X processor found in the A5. The A4 chip launched in the original iPad carried a processor designated S5L8930X.

a5x a6 ios 5 1 code
But now an examination of the iOS 5.1 beta code by 9to5Mac has revealed yet another application processor, S5L8950X, appearing alongside the S5L8945X that is apparently inside the A5X. This new application processor is presumed to be part of Apple's actual A6 system-on-a-chip.

Deep in the iOS 5.1 betas (as shown below) sits references to two next-generation iOS device chips: the previously discussed S5L8945X and this brand-new S5L8950X. While nobody has found this 50X (A6) chip in the code until now, we can report that both next-generation processors entered the iOS code simultaneously. This would seem to indicate that Apple has been working on two next-generation chips.

The report notes that mentions for both processors entered the iOS beta code simultaneously, but it is unclear exactly what Apple's plans are for the two processors. It is possible that they represented a "Plan A/Plan B" scenario, or they could potentially be targeted for two different devices.

Popular Stories

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of 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. Apple has added a handful of new non-AI related feature controls as...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
mac pro creativity

Apple Launched the Controversial 'Trashcan' Mac Pro 11 Years Ago Today

Thursday December 19, 2024 7:00 pm PST by
Apple launched the controversial "trashcan" Mac Pro eleven years ago today, introducing one of its most criticized designs that persisted through a period of widespread discontentment with the Mac lineup. The redesign took the Mac Pro in an entirely new direction, spearheaded by a polished aluminum cylindrical design that became unofficially dubbed the "trashcan" in the Mac community. All of ...
iPhone 17 Slim Feature

'iPhone 17 Air' With 'Major' Design Changes and 19-Inch MacBook Detailed in New Report

Sunday December 15, 2024 9:47 am PST by
Apple is planning a series of "major design" and "format changes" for iPhones over the next few years, according to The Wall Street Journal's Aaron Tilley and Yang Jie. The paywalled report published today corroborated the widely-rumored "iPhone 17 Air" with an "ultrathin" design that is thinner than current iPhone models. The report did not mention a specific measurement, but previous...

Top Rated Comments

Buckeyestar Avatar
167 months ago
A5X for new Apple TV or low cost iPad.
A6 for iPad 3 and 6th gen iPhone.
Score: 13 Votes (Like | Disagree)
dokujaryu Avatar
167 months ago
Didn't Apple recently salt their files with a bunch of part numbers to thwart this kind of bit peeking?
Score: 10 Votes (Like | Disagree)
jamesryanbell Avatar
167 months ago
Well, at least there's hope for a quad-core.
Score: 9 Votes (Like | Disagree)
mijail Avatar
167 months ago
Well, at least there's hope for a quad-core.

Yep. Now, it'd be interesting to find a need for them.
Score: 7 Votes (Like | Disagree)
daleski75 Avatar
167 months ago
Whatever specifications are in the new iPad 3 it will sell truck loads anyway.
Score: 4 Votes (Like | Disagree)
Peace Avatar
167 months ago
A5X for new Apple TV or low cost iPad.
A6 for iPad 3 and 6th gen iPhone.
A5X for the "new" iPad 2 with same resolution
A6 for the "new" iPad 3 with the retina display

This would account for the supposed price hike in the iPad 3
Score: 4 Votes (Like | Disagree)