Teardown of Apple's A6 Chip Reveals Manual Layout of Custom Dual-Core CPU
iFixit and Chipworks have partnered on a teardown of the A6 system-on-a-chip, Apple's custom design that powers the iPhone 5. While several of the high-level details such as 1 GB of RAM and a dual-core CPU paired with triple-core graphics have already been shared, the teardown confirms all of these details with high-resolution images showing the various components of the chip.
Perhaps most notably, the custom ARM-based CPU developed by Apple for the A6 appears to have been manually laid out on the die, an expensive and time-consuming process but one that can offer greater efficiency than automatic layout.
- When compared to the rigid, efficient layout of the GPU cores directly below it, the layout of the ARM cores looks a little homespun—at first.
- Generally, logic blocks are automagically laid out with the use of advanced computer software. However, it looks like the ARM core blocks were laid out manually—as in, by hand.
- A manual layout will usually result in faster processing speeds, but it is much more expensive and time consuming.
- The manual layout of the ARM processors lends much credence to the rumor that Apple designed a custom processor of the same caliber as the all-new Cortex-A15, and it just might be the only manual layout in a chip to hit the market in several years.
The report also takes a look into the die, where it confirms that the A6 is manufactured using Samsung's 32-nanometer HKMG process that was trialled earlier this year with the A5 that made its way into the third-generation Apple TV and the revised iPad 2.
Finally, iFixit and Chipworks took a look at a number of other chips from the iPhone 5, sharing die photos from Qualcomm's MDM9615M modem and RTR8600 RF transceiver, a Cirrus Logic audio amplifier chip, and Murata's Wi-Fi/Bluetooth module incorporating a chip from Broadcom with other components.
Popular Stories
Next year's iPhone 17 Pro models will reportedly feature a major redesign, specifically centering around changes to the rear camera module, and now new supply chain information appears to confirm the striking change, according to a Chinese leaker.
iPhone 17 Pro concept render
Late last month, The Information's Wayne Ma claimed that the rear of the iPhone 17 Pro and iPhone 17 Pro...
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...
Apple's rumored new iPhone 17 Air model has entered the new product introduction phase (NPI) at Foxconn, according to supply chain sources (via DigiTimes).
The NPI phase transitions a product from concept to mass production, beginning with design validation and prototype testing, followed by supplier qualification and manufacturing process development. Pilot production runs test the...
Apple plans to refresh both the Apple TV and the HomePod mini in 2025 as part of a major push into refreshing its smart home product offerings, reports Bloomberg's Mark Gurman.
In a report on an upcoming Apple-designed Bluetooth and Wi-Fi chip, Gurman says that the chip will be introduced in a new Apple TV and HomePod mini that are "scheduled" for 2025. While there is no exact timeline...
Developers now have access to cloud-based M4 and M4 Pro Mac mini units via MacWeb, a Silicon Valley-based provider of cloud services.
The company has launched three configurations of the new Mac mini, powered by Apple's M4 and M4 Pro chips. Developers and IT teams can rent these machines for tasks ranging from basic development to advanced artificial intelligence modeling, providing an...
With iOS 18.2, Apple added a Categories view in the Mail app, which is designed to organize your incoming emails by type. Categories hasn't been receiving the best response from iPhone users, so we thought we'd check it out.
Subscribe to the MacRumors YouTube channel for more videos.
Mail Categories organizes your email inbox into the following sections: Primary for your most important...