The Evolution of iPhone Chip
Every iPhone Chip Explained (2007–2025)
2007–2009: The Samsung Years
iPhone (2007) · Samsung S5L8900
The chip that started it all. Based on the ARM11 core, running at 412 MHz, built on a 90nm process. No GPU — just a simple frame buffer. Performance was revolutionary for 2007, but today even a smartwatch dwarfs it.
iPhone 3G (2008) · Samsung S5L8900
Same chip as the original iPhone. The performance was identical; the big upgrade was 3G cellular and GPS. Apple kept the same processor to focus on software maturity.
iPhone 3GS (2009) · Samsung S5PC100
The first speed jump. Moved to the ARM Cortex-A8 core, clocked at 600 MHz. 65nm process, PowerVR SGX535 GPU — now capable of basic 3D games.
The switch from ARM11 to Cortex-A8 was the first major architectural leap. Cortex-A8 brought out‑of‑order execution, which significantly improved instructions per clock (IPC).
2010–2013: Apple Silicon Begins (A4 to A7)
A4 (iPhone 4 · 2010)
Apple’s first in‑house designed chip. Based on Cortex-A8, but Apple customized the cache hierarchy. 800 MHz, 45nm, PowerVR SGX535. The A4 proved Apple could own its silicon destiny.
A5 (iPhone 4s · 2011)
Dual‑core Cortex-A9, up to 1 GHz. 32nm shrink later. PowerVR SGX543MP2 — first time iPhone graphics truly shined.
A6 (iPhone 5 · 2012)
First custom CPU core from Apple (Swift), based on ARMv7s. Dual‑core at 1.3 GHz, 32nm. Performance per watt improved dramatically.
A7 (iPhone 5s · 2013) — World’s first 64‑bit mobile chip
Revolutionary. The A7 brought 64‑bit computing to smartphones, catching competitors off guard. Cyclone cores, 1.3 GHz, 28nm, PowerVR G6430. This chip set the stage for desktop-class performance.
2014–2017: Refining the Lead (A8 to A11)
A8 (iPhone 6 / 6 Plus · 2014)
20nm process, 2nd‑gen Cyclone cores. Focus on energy efficiency. First chip with an ISP fully designed by Apple.
A9 (iPhone 6s / 6s Plus · 2015)
Dual‑source (TSMC 16nm, Samsung 14nm). Twice the performance of A8. NVMe storage support.
A10 Fusion (iPhone 7 / 7 Plus · 2016)
First big.LITTLE‑style design: 2 high‑performance + 2 efficiency cores. 16nm. GPU: 6‑core PowerVR.
A11 Bionic (iPhone 8 / 8 Plus / X · 2017)
First Apple‑designed GPU. Also introduced the Neural Engine for machine learning tasks. 6‑core CPU. 10nm.
The A11’s custom GPU delivered console‑level graphics for its time, and the Neural Engine enabled real‑time Face ID and Animoji. It was the blueprint for all future Bionic chips.
2018–2021: Neural Engine & Machine Learning (A12–A15)
A12 Bionic (iPhone XS / XS Max / XR · 2018)
First 7nm chip in a smartphone. 8‑core Neural Engine. 2 Vortex + 4 Tempest. Dramatic GPU upgrade.
A13 Bionic (iPhone 11 series · 2019)
Refined 7nm, faster cores, machine learning accelerators. Improved ISP for Deep Fusion.
A14 Bionic (iPhone 12 series · 2020)
First 5nm chip. 11.8 billion transistors. 16‑core Neural Engine. 6‑core CPU.
A15 Bionic (iPhone 13 series · 2021)
Enhanced 5nm. 15.8 billion transistors. GPU with up to 5 cores. System cache doubled.
2022–2025: Pro, Max, and Ultra Expansion
A16 Bionic (iPhone 14 Pro / Pro Max · 2022)
4nm. 16 billion transistors. Focus on efficiency and display engine for Always‑On display.
A17 Pro (iPhone 15 Pro / Pro Max · 2023)
First 3nm chip from Apple. 19 billion transistors. GPU gained hardware ray tracing. ProRes encoding engine.
A18 / A18 Pro (iPhone 16 series · 2024)
Refined 3nm. Improved CPU efficiency cores, next‑gen Neural Engine. Significant GPU cache bump.
A19 Pro (iPhone 17 series · 2025)
The latest and most powerful. 3nm enhanced, ~22 billion transistors. 6‑core CPU with 15% IPC gain, 6‑core GPU with mesh shading, and a 16‑core Neural Engine optimized for on‑device LLMs.
Every iPhone Chip at a Glance (2007–2025)
| Chip | iPhone Model(s) | Year | Process | CPU / Arch | GPU | Transistors |
|---|---|---|---|---|---|---|
| S5L8900 | iPhone, 3G | 2007/08 | 90nm | 1x ARM11 | None | ~100M |
| S5PC100 | iPhone 3GS | 2009 | 65nm | 1x Cortex-A8 | SGX535 | ~200M |
| A4 | iPhone 4 | 2010 | 45nm | 1x Cortex-A8 | SGX535 | ~200M |
| A5 | iPhone 4s | 2011 | 45→32nm | 2x Cortex-A9 | SGX543MP2 | ~1B |
| A6 | iPhone 5 | 2012 | 32nm | 2x Swift | SGX543MP3 | ~1.2B |
| A7 | iPhone 5s | 2013 | 28nm | 2x Cyclone | G6430 | ~1B |
| A8 | iPhone 6/6+ | 2014 | 20nm | 2x Cyclone 2.0 | GX6450 | 2B |
| A9 | iPhone 6s | 2015 | 16/14nm | 2x Twister | GT7600 | 2.5B+ |
| A10 | iPhone 7 | 2016 | 16nm | 2+2 Fusion | GT7600 Plus | 3.3B |
| A11 | iPhone 8/X | 2017 | 10nm | 2+4 Bionic | Apple 3‑core | 4.3B |
| A12 | XS/XR | 2018 | 7nm | 2+4 Vortex | Apple 4‑core | 6.9B |
| A13 | iPhone 11 | 2019 | 7nm+ | 2+4 Lightning | Apple 4‑core | 8.5B |
| A14 | iPhone 12 | 2020 | 5nm | 2+4 Firestorm | Apple 4‑core | 11.8B |
| A15 | iPhone 13 | 2021 | 5nm+ | 2+4 Avalanche | Apple 5‑core | 15.8B |
| A16 | iPhone 14 Pro | 2022 | 4nm | 2+4 Everest | Apple 5‑core | 16B |
| A17 Pro | iPhone 15 Pro | 2023 | 3nm | 2+4 new arch | Apple 6‑core+RT | 19B |
| A18 Pro | iPhone 16 Pro | 2024 | 3nm+ | 2+4 improved | Apple 6‑core | ~21B |
| A19 Pro | iPhone 17 Pro | 2025 | 3nmE | 2+4 +15% IPC | Apple 6‑core mesh | ~22B |
Frequently Asked Questions
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From 2007’s 412MHz Samsung ARM11 to 2025’s A19 Pro 3nm, Apple’s iPhone chips have evolved 150x in performance. This guide covers every A-series milestone: first 64-bit (A7), Neural Engine debut (A11), custom GPU, and the revolutionary 3nm transition. Complete with specs table, transistor counts, and architectural analysis.
