Apple A12X

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Apple A12X Bionic
Apple A12X.jpg
General information
LaunchedOctober 30, 2018
DiscontinuedMarch 18, 2020
Designed byApple Inc.
Common manufacturer(s)
Product codeAPL1083[2]
Max. CPU clock rateto 2.49[3] GHz
L1 cache128 KB instruction, 128 KB data
L2 cache8 MB
Architecture and classification
Min. feature size7 nm[4]
MicroarchitectureVortex and Tempest
Instruction setA64ARMv8.3‑A
Physical specifications
GPU(s)Apple-designed 7-core[4]
Products, models, variants
Variant(s)Apple A12, Apple A12Z
PredecessorApple A10X
SuccessorApple A12Z

The Apple A12X Bionic is a 64-bit system on a chip (SoC) designed by Apple Inc. It first appeared in the iPad Pro (3rd generation), announced on October 30, 2018.[4] The A12X is an 8-core variant of the A12 (four big cores, four small cores) and Apple states that it has 35 percent faster single-core CPU performance and 90 percent faster overall CPU performance than its predecessor, the Apple A10X.[4] The A12X's design is also used in the Apple A12Z.[5]


The A12X features an Apple-designed 64-bit ARMv8.3-A octa-core CPU, with four high-performance cores called Vortex and four energy-efficient cores called Tempest.[4][1] The Vortex cores are a 7-wide decode out-of-order superscalar design, while the Tempest cores are a 3-wide decode out-of-order superscalar design. The Tempest cores are based on Apple's Swift cores from the Apple A6, and are similar in performance to ARM Cortex-A73 CPU cores.[6][7] It is Apple’s first SoC with an octa core CPU.[1]

The A12X integrates an Apple-designed hepta core graphics processing unit (GPU) with twice the graphics performance of the A10X.[4] Embedded in the A12X is the M12 motion coprocessor.[8] The A12X includes dedicated neural network hardware that Apple calls a "Next-generation Neural Engine".[4] This neural network hardware, which is the same as found in the A12,[1] can perform up to 5 trillion operations per second.[4]

The A12X is manufactured by TSMC using a 7 nm FinFET process, and it contains 10 billion transistors[1][4] vs. the 6.9 billion on the A12.[9] The A12X is paired with 4 GB of LPDDR4X memory in the third-generation 12.9" iPad Pro and the 11" iPad Pro or 6 GB in the 1TB storage configurations.[10][2]

Products that include the Apple A12X[edit]

See also[edit]


  1. ^ a b c d e f Frumusanu, Andrei (October 30, 2018). "Apple Announces New 11" and 12.9" iPad Pros with A12X SoC". AnandTech. Retrieved October 30, 2018.
  2. ^ a b "iPad Pro 11" Teardown". iFixit. November 12, 2018. Retrieved November 12, 2018.
  3. ^ "iPad8,8 - Geekbench Browser". Geekbench. Retrieved November 12, 2018.
  4. ^ a b c d e f g h i "New iPad Pro with all-screen design is most advanced, powerful iPad ever" (Press release). Apple Inc. October 30, 2018. Retrieved October 30, 2018.
  5. ^
  6. ^ Frumusanu, Andrei. "The iPhone XS & XS Max Review: Unveiling the Silicon Secrets". Retrieved January 27, 2019.
  7. ^ Frumusanu, Andrei. "Apple iPhone XS Review Addendum: Small Core and NN Performance". Retrieved May 1, 2019.
  8. ^ "iPad Pro Technical Specifications". Apple Inc. October 30, 2018. Archived from the original on October 30, 2018. Retrieved October 30, 2018.
  9. ^ Summers, Nick (September 12, 2018). "Apple's A12 Bionic is the first 7-nanometer smartphone chip". Engadget. Retrieved September 12, 2018.
  10. ^ Axon, Samuel (November 7, 2018). "2018 iPad Pro review: "What's a computer?"". Ars Technica. Condé Nast. Retrieved November 12, 2018.