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Apple A8X information


Apple A8X
Apple A8X chip
General information
LaunchedOctober 16, 2014
DiscontinuedMarch 21, 2017
Designed byApple Inc.
Common manufacturer(s)
  • TSMC[1]
Product codeAPL1012[2]
Performance
Max. CPU clock rate1.5[3] GHz
Cache
L1 cachePer core: 64 KB instruction + 64 KB data[3]
L2 cache2 MB shared[3]
L3 cache4 MB[4]
Architecture and classification
ApplicationMobile
Technology node20 nm[1]
MicroarchitectureTyphoon[5]
Instruction setARMv8-A: A64, A32, T32
Physical specifications
Cores
  • 3[3]
GPU(s)PowerVR Series6XT GXA6850 (8 cores)[4][6]
Products, models, variants
Variant(s)
  • Apple A8
History
Predecessor(s)Apple A7
Successor(s)Apple A9 (iPad 5)
Apple A9X (iPad Pro)

The Apple A8X is a 64-bit ARM-based system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, and manufactured by TSMC.[1] It was introduced with and only used in the iPad Air 2, which was announced on October 16, 2014.[7] It is a variant of the A8 inside the iPhone 6 family of smartphones and Apple states that it has 40% more CPU performance and 2.5 times the graphics performance of its predecessor, the Apple A7.[7][8] The latest software update for the iPad Air 2 using this chip is iPadOS 15.8.2, released on March 5, 2024, as it was discontinued with the release of iPadOS 16 in 2022 due to hardware limitations of the A8X.

  1. ^ a b c "TSMC reportedly lands CPU orders for Apple next-generation iPad". Archived from the original on 2016-06-04. Retrieved 2014-10-18.
  2. ^ "iPad Air 2 Teardown". iFixit. October 22, 2014. Archived from the original on May 13, 2019. Retrieved October 22, 2014.
  3. ^ a b c d "iPad Air 2 Benchmark Points to A8X Chip With Triple-Core 1.5 GHz CPU, 2 GB RAM". Archived from the original on 2014-10-23. Retrieved 2014-10-21.
  4. ^ a b "Apple A8X's GPU - GXA6850, Even Better Than I Thought". Anandtech. November 11, 2014. Archived from the original on November 30, 2014. Retrieved November 12, 2014.
  5. ^ "The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC". Archived from the original on 2015-07-07. Retrieved 2015-07-07.
  6. ^ "Imagination PowerVR GXA6850 - NotebookCheck.net Tech". NotebookCheck.net. November 26, 2014. Archived from the original on November 29, 2014. Retrieved November 26, 2014.
  7. ^ a b "Apple Introduces iPad Air 2—The Thinnest, Most Powerful iPad Ever" (Press release). Apple. October 16, 2014. Archived from the original on October 18, 2014. Retrieved October 16, 2014.
  8. ^ "iPad Air 2 - Performance". Apple. October 16, 2014. Archived from the original on October 16, 2014. Retrieved October 16, 2014.

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