The
A series is a family of
SoCs used in the
iPhone, certain
iPad models (including iPad Mini and entry-level iPad),
MacBook Neo, and the
Apple TV.
A-series chips were also used in the discontinued
iPod Touch line and the original
HomePod. They integrate one or more
ARM-based processing cores (
CPU), a graphics processing unit (
GPU),
cache memory and other electronics necessary to provide mobile computing functions within a single physical package.
Apple A4 The
Apple A4 is a
PoP SoC manufactured by
Samsung, the first SoC Apple designed in-house. It combines an
ARM Cortex-A8 CPU also used in Samsung's S5PC110A01 SoC and a
PowerVR SGX 535 graphics processor (GPU), all built on Samsung's 45-nanometer silicon chip fabrication process. The design emphasizes power efficiency. The A4 commercially debuted in 2010, in Apple's iPad
tablet, and was later used in the
iPhone 4 smartphone, the
fourth-generation iPod Touch, and the 2nd-generation
Apple TV. The Cortex-A8 core used in the A4, dubbed
Hummingbird, is thought to use performance improvements developed by Samsung in collaboration with chip designer
Intrinsity, which was subsequently acquired by Apple It can run at far higher clock rates than other Cortex-A8 designs yet remains fully compatible with the design provided by ARM. The A4 runs at different speeds in different products: 1 GHz in the first iPads and 2nd-generation Apple TV, and 800 MHz in the iPhone 4 and fourth-generation iPod Touch. The A4's SGX535 GPU could theoretically push 35 million polygons per second and 500 million pixels per second, although real-world performance may be considerably less. Other performance improvements include additional
L2 cache. The A4 processor package does not contain
RAM, but supports
PoP installation. The 1st-generation iPad,
fourth-generation iPod Touch, and the 2nd-generation Apple TV have an A4 mounted with two low-power 128 MB
DDR SDRAM chips (totaling 256 MB), while the iPhone 4 has two 256 MB packages for a total of 512 MB. The RAM is connected to the processor using ARM's
64-bit-wide
AMBA 3 AXI bus. To give the iPad high graphics bandwidth, the width of the RAM data bus is double that used in previous ARM11- and ARM9-based Apple devices.
Apple A5 The
Apple A5 is an SoC manufactured by
Samsung that replaced the
A4. The chip commercially debuted with the release of Apple's
iPad 2 tablet in March 2011, followed by its release in the
iPhone 4S smartphone later that year. Compared to the A4, the A5
CPU "can do twice the work" and the
GPU has "up to nine times the graphics performance", according to Apple. The A5 contains a dual-core
ARM Cortex-A9 CPU with ARM's advanced
SIMD extension, marketed as
NEON, and a dual core
PowerVR SGX543MP2 GPU. This GPU can push between 70 and 80 million polygons/second and has a pixel fill rate of 2 billion pixels/second. The iPad 2's technical specifications page says the A5 is clocked at 1 GHz, though it can adjust its frequency to save battery life. The clock speed of the unit used in the iPhone 4S is 800 MHz. Like the A4, the A5 process size is 45 nm. An updated
32 nm version of the A5 processor was used in the third-generation Apple TV, the
fifth-generation iPod Touch, the iPad Mini, and the new version of iPad 2 (version iPad2,4). The chip in the Apple TV has one core locked. Markings on the square package indicate that it is named
APL2498, and in software, the chip is called
S5L8942. The
32 nm variant of the A5 provides around 15% better battery life during web browsing, 30% better when playing 3D games and about 20% better battery life during video playback. In March 2013, Apple released an updated version of the 3rd-generation Apple TV (Rev A, model A1469) containing a smaller, single-core version of the A5 processor. Unlike the other A5 variants, this version of the A5 is not a PoP, having no stacked RAM. The chip is very small, just 6.1×6.2 mm, but as the decrease in size is not due to a decrease in feature size (it is still on a 32 nm fabrication process), this indicates that this A5 revision is of a new design. Markings tell that it is named
APL7498, and in software, the chip is called
S5L8947.
Apple A5X The
Apple A5X is an SoC announced on March 7, 2012, at the launch of the
third-generation iPad. It is a high-performance variant of the
Apple A5; Apple claims it has twice the graphics performance of the A5. It was superseded in the
fourth-generation iPad by the
Apple A6X processor. The A5X has a quad-core graphics unit (PowerVR SGX543MP4) instead of the previous dual-core as well as a quad-channel memory controller that provides a memory bandwidth of 12.8 GB/s, roughly three times more than in the A5. The added graphics cores and extra memory channels add up to a very large die size of 165 mm2, for example twice the size of
Nvidia Tegra 3. This is mainly due to the large PowerVR SGX543MP4 GPU. The clock frequency of the dual ARM Cortex-A9 cores have been shown to operate at the same 1 GHz frequency as in A5. The RAM in A5X is separate from the main CPU package.
Apple A6 The
Apple A6 is a PoP SoC introduced on September 12, 2012, at the launch of the
iPhone 5, then a year later was inherited by its minor successor the
iPhone 5C. Apple states that it is up to twice as fast and has up to twice the graphics power compared to its predecessor the
Apple A5. It is 22% smaller and draws less power than the 45 nm A5. The A6 is said to use a 1.3 GHz custom rather than a licensed CPU from ARM like in previous designs, and an integrated 266 MHz triple-core
PowerVR SGX 543MP3
graphics processing unit (GPU). The Swift core in the A6 uses a new tweaked instruction set, ARMv7s, featuring some elements of the
ARM Cortex-A15 such as support for the
Advanced SIMD v2, and
VFPv4.
Apple A6X Apple A6X is an SoC introduced at the launch of the
fourth-generation iPad on October 23, 2012. It is a high-performance variant of the
Apple A6. Apple claims the A6X has twice the CPU performance and up to twice the graphics performance of its predecessor, the
Apple A5X. Like the A6, this SoC continues to use the dual-core Swift CPU, but it has a new quad core GPU, quad channel memory and slightly higher 1.4 GHz CPU clock rate. It uses an integrated quad-core
PowerVR SGX 554MP4
graphics processing unit (GPU) running at 300 MHz and a quad-channel
memory subsystem. Compared to the A6 the A6X is 30% larger, but it continues to be manufactured by Samsung on a
high-κ metal gate (HKMG) 32 nm process. The Apple A7 chip is the first 64-bit chip to be used in a smartphone and later a tablet computer. It includes a dedicated Secure Enclave Processor to help store and protect the data from the
Touch ID fingerprint sensor on the
iPhone 5S and
iPad mini 3.–1.4 GHz 64-bit
ARMv8-A dual-core CPU, The ARMv8-A architecture doubles the number of
registers of the A7 compared to the A6. It now has 31 general-purpose registers that are each
64-bits wide and 32 floating-point/
NEON registers that are each 128-bits wide. and the chip includes over 1 billion
transistors on a die 102 mm2 in size. A year later it would drive the
iPad Mini 4. Apple states that it has 25% more CPU performance and 50% more graphics performance while drawing only 50% of the power compared to its predecessor, the
Apple A7. On February 9, 2018, Apple released the HomePod, which is powered by an Apple A8 with 1 GB of RAM. The A8 features an Apple-designed 1.4 GHz 64-bit
ARMv8-A The A8 is manufactured on a 20 nm process by
TSMC, which replaced
Samsung as the manufacturer of Apple's mobile device processors. It contains 2 billion transistors. Despite that being double the number of transistors compared to the A7, its physical size has been reduced by 13% to 89 mm2 (consistent with a shrink only, not known to be a new microarchitecture).
Apple A8X The
Apple A8X is a
64-bit SoC introduced at the launch of the
iPad Air 2 on October 16, 2014. It is a high performance variant of the
Apple A8. Apple states that it has 40% more CPU performance and 2.5 times the graphics performance of its predecessor, the
Apple A7. Unlike the A8, this SoC uses a
triple-core CPU, a new
octa-core GPU,
dual channel memory and slightly higher 1.5 GHz CPU clock rate. It uses an integrated custom octa-core
PowerVR GXA6850
graphics processing unit (GPU) running at 450 MHz and a dual-channel
memory subsystem. Apple states that it has 70% more CPU performance and 90% more graphics performance compared to its predecessor, the
Apple A8.
Apple A9X The
Apple A9X is a
64-bit SoC that was announced on September 9, 2015, and released on November 11, 2015, and first appeared in the
iPad Pro. It offers 80% more CPU performance and two times the GPU performance of its predecessor, the
Apple A8X. It is manufactured by
TSMC using a 16
nm FinFET process. Unlike its predecessor, the A8X, the Apple A9X runs on an increased 2.16 to 2.26 GHz clock rate.
Apple A10 Fusion The
Apple A10 Fusion is a
64-bit ARM-based SoC that first appeared in the
iPhone 7 and 7 Plus, which were introduced on September 7, 2016. The A10 is also featured in the
sixth-generation iPad,
seventh-generation iPad and
seventh-generation iPod Touch. It has a new
ARM big.LITTLE quad core design with two high performance cores, and two smaller highly efficient cores. It is 40% faster than the A9, with 50% faster graphics, and runs at an improved 2.34 GHz clock rate. It is manufactured by TSMC on their 16 nm FinFET process.
Apple A10X Fusion The
Apple A10X Fusion is a
64-bit ARM-based SoC that first appeared in the 10.5″
iPad Pro and the second generation of the 12.9″ iPad Pro, which were both announced on June 5, 2017. It is a variant of the
A10 and Apple claims that it has 30 percent faster CPU performance and 40 percent faster GPU performance than its predecessor, the
A9X.
Apple A11 Bionic The
Apple A11 Bionic is a
64-bit ARM-based SoC that first appeared in the
iPhone 8, iPhone 8 Plus, and
iPhone X, which were introduced on September 12, 2017. It is also the first A-series chip to feature Apple's "Neural Engine," which enhances artificial intelligence and machine learning processes.
Apple A12 Bionic The
Apple A12 Bionic is a
64-bit ARM-based SoC that first appeared in the
iPhone XS,
XS Max and
XR, which were introduced on September 12, 2018. It is also used in the
third-generation iPad Air,
fifth-generation iPad Mini, the
eighth-generation iPad, and the second generation
Apple TV 4K. It has two high-performance cores, which are 15% faster than the A11 Bionic, and four high-efficiency cores, which have 50% lower power usage than the energy-efficient cores in the A11 Bionic. The A12 is manufactured by
TSMC FinFET process, the first to ship in a smartphone.
Apple A12X Bionic The
Apple A12X Bionic is a
64-bit ARM-based SoC that first appeared in the 11″
iPad Pro and the third generation of the 12.9″ iPad Pro, which were both announced on October 30, 2018. It offers 35% faster single-core and 90% faster multi-core CPU performance than its predecessor, the A10X. It has four high-performance cores and four high-efficiency cores. The A12X is manufactured by
TSMC using a
7 nm FinFET process.
Apple A12Z Bionic The
Apple A12Z Bionic is an updated version of the A12X Bionic, first appearing in the fourth generation
iPad Pro, which was announced on March 18, 2020. It adds an additional GPU core, compared to the A12X, for improved graphics performance. The A12Z is also used in the
Developer Transition Kit prototype computer that helps developers prepare their software for Macs based on Apple silicon.
Apple A13 Bionic The
Apple A13 Bionic is a
64-bit ARM-based SoC that first appeared in the
iPhone 11,
11 Pro, and
11 Pro Max, which were introduced on September 10, 2019. It is also featured in the
second-generation iPhone SE (released April 15, 2020), the
9th generation iPad (announced September 14, 2021) and in the
Studio Display (announced March 8, 2022) The entire A13 SoC features a six-core CPU, four-core GPU, and an eight-core Neural Engine, which is dedicated to handling on-board machine learning processes; four of the six cores on the CPU are low-powered cores that are dedicated to handling less CPU-intensive operations, such as voice calls, browsing the Web, and sending messages, while two higher-performance cores are used only for more CPU-intensive processes, such as recording 4K video or playing a video game.
Apple A14 Bionic The
Apple A14 Bionic is a
64-bit ARM-based SoC that first appeared in the
fourth-generation iPad Air and
iPhone 12, released on October 23, 2020. It is the first commercially available
5nm chipset and contains 11.8 billion transistors and a 16-core Neural Engine. It includes the Samsung
LPDDR4X DRAM, a 6-core CPU, and a 4-core GPU with real-time machine learning capabilities. It was later used in the
tenth-generation iPad, released on October 26, 2022.
Apple A15 Bionic The
Apple A15 Bionic is a
64-bit ARM-based SoC that first appeared in the
iPhone 13, unveiled on September 14, 2021. The A15 is built on a 5-nanometer manufacturing process with 15 billion transistors. It has 2 high-performance processing cores, 4 high-efficiency cores, a new 5-core graphics for iPhone 13 Pro series (4-core for iPhone 13 and 13 mini) processing unit, and a new 16-core Neural Engine capable of 15.8 trillion operations per second. It is also used in the
third-generation iPhone SE,
iPhone 14, iPhone 14 Plus,
sixth-generation iPad Mini and third generation
Apple TV 4K.
Apple A16 Bionic The
Apple A16 Bionic is a
64-bit ARM-based SoC that first appeared in the
iPhone 14 Pro, unveiled on September 7, 2022. The A16 has 16 billion transistors and is built on
TSMC's
N4P fabrication process, being touted by Apple as the first 4 nm processor in a smartphone. However, N4 is an enhanced version of N5 technology, a
de facto fourth-generation
5 nm manufacturing process. The chip has 2 high-performance processing cores, 4 high-efficiency cores and 5-core graphics. Memory is upgraded to LPDDR5 for 50% higher bandwidth and a 7% faster 16-core Neural Engine capable of 17 trillion operations per second. It was later used in the
iPhone 15 and iPhone 15 Plus, as well as the
iPad 11-inch, with a 5-core CPU and 4-core GPU.
Apple A17 Pro The
Apple A17 Pro is a
64-bit ARM-based SoC that first appeared in the
iPhone 15 Pro, unveiled on September 12, 2023. It is Apple's first
3 nm SoC. The chip has 2 high-performance processing cores, 4 high-efficiency cores, a 6-core GPU, and a 16-core Neural Engine capable of 35 trillion operations per second. The GPU was described as their biggest redesign in the history of Apple GPUs, adding hardware accelerated
ray tracing and mesh shading support. It is also used in the
iPad Mini, with a 5-core GPU.
Apple A18 and Apple A18 Pro The
Apple A18 and
Apple A18 Pro are
64-bit ARM-based SoCs designed by Apple that first appeared in the
iPhone 16 and
iPhone 16 Pro respectively, unveiled on September 9, 2024. Both SoCs are built on TSMC's N3E process and have 2 high-performance cores and 4 high-efficiency cores. The A18 has 5-core graphics (4-core for
iPhone 16e), while the A18 Pro has 6-core graphics. The A18 and A18 Pro use LPDDR5X for 17% higher memory bandwidth, and the 16-core Neural Engine has the same quoted power as the A17 Pro. The A18 Pro is also used in the
MacBook Neo, with a 5-core GPU.
Apple A19 and Apple A19 Pro The
Apple A19 and
Apple A19 Pro are
64-bit ARM-based SoCs designed by Apple that first appeared in the
iPhone 17,
iPhone Air, and
iPhone 17 Pro respectively, unveiled on September 9, 2025. Both SoCs are built on TSMC's N3P process and have 2 high-performance cores and 4 high-efficiency cores. The A19 has 5-core graphics (4-core for
iPhone 17e), while the A19 Pro has 6-core graphics (5-core for iPhone Air). The A19 and A19 Pro are also used in the Studio Display (2026) and Studio Display XDR.
Comparison of A-series processors ==
M-series SoCs ==