Apple A8
The Apple A8 is a 64-bit ARM-based system on a chip (SoC) designed by Apple Inc. It first appeared in the iPhone 6 and iPhone 6 Plus, which were introduced on September 9, 2014. Apple states that it has 25% more CPU performance and 50% more graphics performance while drawing only 50% of the power of its predecessor, the Apple A7. The latest software updates for the 1.1GHz and 1.4GHz variants systems using this chip are iOS 12.5.7, released on January 23, 2023 as they were discontinued with the release of iOS 13 in 2019, and 1.5GHz variant for the iPad Mini 4 is iPadOS 15.7.7, released on June 21, 2023 as it was discontinued with the release of iPadOS 16 in 2022, while updates for the 1.5GHz variant continue for Apple TV HD. The A8 chip was discontinued on October 18, 2022, following the discontinuation of the Apple TV HD.
Apple A8 processor | |
| General information | |
|---|---|
| Launched | September 9, 2014 |
| Discontinued | October 18, 2022 |
| Designed by | Apple Inc. |
| Common manufacturer(s) | |
| Product code | APL1011 |
| Performance | |
| Max. CPU clock rate | 1.1 GHz (iPod Touch (6th generation)) to 1.4 GHz (iPhone 6, iPhone 6 Plus) and 1.5 GHz (iPad mini 4 & Apple TV (4th Gen)) |
| Cache | |
| L1 cache | Per core: 64 KB instruction + 64 KB data |
| L2 cache | 1 MB shared |
| L3 cache | 4 MB |
| Architecture and classification | |
| Application | Mobile |
| Technology node | 20 nm |
| Microarchitecture | Typhoon |
| Instruction set | ARMv8-A: A64, A32, T32 |
| Physical specifications | |
| Transistors |
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| Cores |
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| GPU(s) | Custom PowerVR Series 6XT (quad-core) |
| Products, models, variants | |
| Variant(s) | |
| History | |
| Predecessor(s) | Apple A7 |
| Successor(s) | Apple A9 |