Apple A8

Apple A8
Apple A8 processor
General information
LaunchedSeptember 9, 2014
DiscontinuedOctober 18, 2022
Designed byApple Inc.
Common manufacturer
Product codeAPL1011[2]
Performance
Max. CPU clock rate1.1 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))[3] 
Cache
L1 cachePer core: 64 KB instruction + 64 KB data[4]
L2 cache1 MB shared[4]
L3 cache4 MB[4]
Architecture and classification
ApplicationMobile
Technology node22 nm (20SOC)[5]
MicroarchitectureTyphoon[6][7]
Instruction setARMv8-A: [4]A64, A32, T32
Physical specifications
Transistors
  • 2 billion
Cores
GPUCustom PowerVR Series 6XT (quad-core)[9][10]
Products, models, variants
Variant
History
PredecessorApple A7
SuccessorApple A9

The Apple A8 is a 64-bit ARM-based system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, It first appeared in the iPhone 6 and iPhone 6 Plus, which were introduced on September 9, 2014.[11] 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,[12] and 1.5 GHz variant for the iPad Mini 4 is iPadOS 15.8.3, released on July 29, 2024 as it was discontinued with the release of iPadOS 16 in 2022, while updates for the 1.5 GHz variant continue for Apple TV HD. The A8 chip was discontinued on October 18, 2022, following the discontinuation of the Apple TV HD.[13]

  1. ^ "Inside the iPhone 6 and iPhone 6 Plus". Chipworks. September 19, 2014. Archived from the original on 2014-09-24. Retrieved September 20, 2014.
  2. ^ "iPhone 6 Plus Teardown". iFixit. September 18, 2014. Archived from the original on July 17, 2018. Retrieved September 19, 2014.
  3. ^ "iPad Mini 4 performance preview: A 1.5 GHz Apple A8 with 2GB of RAM". Ars Technica. September 15, 2015. Archived from the original on September 16, 2015. Retrieved September 16, 2015.
  4. ^ a b c d "The iPhone 6 Review: A8's CPU: What Comes After Cyclone?". AnandTech. September 30, 2014. Archived from the original on May 15, 2015. Retrieved September 30, 2014.
  5. ^ Cite error: The named reference AnandTech-Apple-Announces-A8 was invoked but never defined (see the help page).
  6. ^ "The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC". Archived from the original on 2015-07-07. Retrieved 2015-07-07.
  7. ^ Chester, Brandon (July 15, 2015). "Apple Refreshes The iPod Touch With A8 SoC And New Cameras". Archived from the original on September 5, 2015. Retrieved September 11, 2015.
  8. ^ Anthony, Sebastian. "Apple's A8 SoC analyzed: The iPhone 6 chip is a 2-billion-transistor 20nm monster". www.extremetech.com. ExtremeTech. Archived from the original on 11 September 2014. Retrieved 10 September 2014.
  9. ^ Smith, Ryan (September 23, 2014). "Chipworks Disassembles Apple's A8 SoC: GX6450, 4MB L3 Cache & More". AnandTech. Archived from the original on September 23, 2014. Retrieved September 23, 2014.
  10. ^ Kanter, David. "A Look Inside Apple's Custom GPU for the iPhone". Archived from the original on 2019-08-27. Retrieved 2019-08-27.
  11. ^ "Apple Announces iPhone 6 & iPhone 6 Plus—The Biggest Advancements in iPhone History" (Press release). Apple. September 9, 2014. Archived from the original on September 9, 2014. Retrieved September 9, 2014.
  12. ^ Savov, Vlad (September 9, 2014). "iPhone 6 and iPhone 6 Plus have a new faster A8 processor". The Verge. Vox Media. Archived from the original on September 10, 2014. Retrieved September 9, 2014.
  13. ^ Clark, Mitchell (2022-10-18). "The Apple TV HD is no longer available on Apple's store". The Verge. Retrieved 2022-10-18.


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