Apple said to have tested 64-bit 'A7′ chips for iPhone 5S, 31% speed increases reported
As Apple's iPhone 5S event approaches, some new details about the new device's internals are emerging. Clayton Morris has claimed on Twitter that the iPhone 5S's A7 processor is …
Context & Ripple Effects
Each fall iPhone launch has doubled as a silicon story: AnandTech's 2012 tests put the A6 ahead of Intel's Atom Z2460 in SunSpider [[a:1197616]], and the year before, preliminary numbers had the A5 at roughly 800MHz with a GPU just below the iPad 2's [[a:1192849]]. With Apple's 5S event imminent, Fox anchor Clayton Morris has tweeted that the A7 inside is not only faster but 64-bit, with a circulating figure of a 31% speed increase.
That single-source rumor was picked up within a day by at least eight outlets including MacRumors, AppleInsider and BGR India — unusually broad syndication for an unconfirmed spec leak, which itself signals how much weight the market puts on Apple's chip cadence. Nothing here is confirmed by Apple; the 64-bit claim rests entirely on Morris's report.
First-order effects
- If the leak holds, the iPhone 5S ships as the first phone with a 64-bit processor and roughly a 31% speed gain, extending the A-series performance streak that has been benchmarked publicly at every generation since the A5.
- Until Apple takes the stage at its own event, the claim remains a two-sourced-at-best rumor, so competitors and suppliers have to plan against a number they cannot yet verify.
Second-order effects
- A 64-bit jump across an installed base the company pegs at more than 600 million iOS devices sold forces the app ecosystem onto new toolchains, making backward compatibility the real integration cost rather than the chip itself.
- Wider address space raises the memory content Apple needs per device, pushing DRAM suppliers and BOM pricing toward larger configurations than the 32-bit generation required.
Third-order effects
- If Apple keeps differentiating through in-house silicon rather than off-the-shelf ARM cores, the A-series roadmap becomes the iPhone's primary annual upgrade argument and widens the gap with licensees of generic cores.
- Whether Apple carries a 64-bit mobile architecture beyond phones is the open structural question; nothing in the current reporting settles it.
The trend: Smartphone competition is shifting from displays and radios to proprietary system-on-chip design, with Apple's yearly A-series cadence setting the reference point rivals must match.