An in-depth look at Apple's six-core A13 Bionic processor, found in the new iPhones, which promises 30% more efficiency than last year's A12 chip
Here's how the chip in each new iPhone works, and what it tells us about the future of mobile technology. — About 72 minutes …
Context & Ripple Effects
The A13 Bionic deepens an efficiency-first arc that began with the 7-nanometer A12X, whose eight CPU cores were already pushing tablet-class silicon toward desktop workloads. Apple claims the two high-performance cores are 20% faster while consuming 40% less power than the A12, on a die that grew to 8.5 billion transistors from 6.9 billion.
The reason raw speed alone no longer headlines matters: back in 2017 the A11 was benchmarked beating an i5 MacBook Pro in single-core, so the remaining battleground is sustained performance within a phone's thermal and battery envelope. Efficiency gains are also what let one design stretch across price tiers — iOS 14 code later pointed to an iPhone 9 reusing the same A13.
First-order effects
- iPhone 11, 11 Pro, and 11 Pro Max buyers get the direct benefit: more sustained performance and longer battery life from cores that draw 40% less power than the A12 generation.
- Apple keeps its annual custom-silicon cadence intact without a node shrink story to lean on — the gains come from architecture and transistor budget (6.9B to 8.5B) rather than process leadership.
Second-order effects
- Reusing the A13 in the planned lower-cost iPhone 9 lets Apple carry flagship-level performance into budget tiers, squeezing rivals whose cheap phones run older, slower chips.
- The steady single-thread climb the corpus tracks — culminating in the A14 analysis projecting nearly 3x single-thread growth in five years — keeps pressure building on x86 incumbents ahead of Apple Silicon arriving in the Mac.
Third-order effects
- If the pattern holds, the iPhone becomes Apple's chip foundry for its whole hardware line: mobile SoCs mature into Mac-class silicon, collapsing the boundary between phone and PC processors and forcing Intel-dependent vendors to answer with their own integrated designs.
The trend: Apple's yearly A-series releases are compounding architectural efficiency gains into a pipeline that carries smartphone silicon into laptops, setting the stage for the company's exit from Intel processors.