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The '''Apple A8''' is a [[64-bit computing|64-bit]] [[system on a chip]] (SoC) designed by [[Apple Inc.]] It first appeared in the [[iPhone 6]], which was introduced on September 9, 2014.<ref name="Apple iPhone 6 PR">{{cite press release |url=http://www.apple.com/pr/library/2014/09/09Apple-Announces-iPhone-6-iPhone-6-Plus-The-Biggest-Advancements-in-iPhone-History.html |title=Apple Announces iPhone 6 & iPhone 6 Plus—The Biggest Advancements in iPhone History |publisher=Apple |date=September 9, 2014 |accessdate=September 9, 2014}}</ref> Apple states that it has 25% better CPU performance and 50% graphics performance while drawing only 50% of the power compared to its predecessor, the [[Apple A7]].<ref name="Verge A8">{{cite news |last=Savov |first=Vlad |title=iPhone 6 and iPhone 6 Plus have a new faster A8 processor |url=http://www.theverge.com/2014/9/9/6127111/iphone-6-and-iphone-6-plus-have-a-new-faster-a8-processor |work=The Verge |publisher=Vox Media |date=September 9, 2014 |accessdate=September 9, 2014}}</ref>
The '''Apple A8''' is a [[64-bit computing|64-bit]] [[system on a chip]] (SoC) designed by [[Apple Inc.]] It first appeared in the [[iPhone 6]], which was introduced on September 9, 2014.<ref name="Apple iPhone 6 PR">{{cite press release |url=http://www.apple.com/pr/library/2014/09/09Apple-Announces-iPhone-6-iPhone-6-Plus-The-Biggest-Advancements-in-iPhone-History.html |title=Apple Announces iPhone 6 & iPhone 6 Plus—The Biggest Advancements in iPhone History |publisher=Apple |date=September 9, 2014 |accessdate=September 9, 2014}}</ref> Apple states that it has 25% better CPU performance and 50% better graphics performance while drawing only 50% of the power compared to its predecessor, the [[Apple A7]].<ref name="Verge A8">{{cite news |last=Savov |first=Vlad |title=iPhone 6 and iPhone 6 Plus have a new faster A8 processor |url=http://www.theverge.com/2014/9/9/6127111/iphone-6-and-iphone-6-plus-have-a-new-faster-a8-processor |work=The Verge |publisher=Vox Media |date=September 9, 2014 |accessdate=September 9, 2014}}</ref>


== Design ==
== Design ==

Revision as of 01:56, 28 September 2014

Apple A8
The A8 processor
General information
LaunchedSeptember 9, 2014
DiscontinuedPresent
Designed byApple Inc.
Common manufacturer
Product codeAPL1011[2]
Performance
Max. CPU clock rate1.4 GHz[3]
Architecture and classification
ApplicationMobile
Technology node20 nm[4]
MicroarchitectureCyclone
Instruction setARMv8-A
Physical specifications
Cores
GPUPowerVR Series 6XT GX6450 (quad core)[6]
History
PredecessorApple A7

The Apple A8 is a 64-bit system on a chip (SoC) designed by Apple Inc. It first appeared in the iPhone 6, which was introduced on September 9, 2014.[7] Apple states that it has 25% better CPU performance and 50% better graphics performance while drawing only 50% of the power compared to its predecessor, the Apple A7.[8]

Design

The A8 is manufactured on a 20 nm process[4] by TSMC,[1] 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).[5] It has 1 GB of LPDDR3 RAM included in the package.[2]

Early benchmarking using the Geekbench application suggests that the processor is dual core, and has a frequency of 1.38 GHz, supporting Apple's claim of it being 25% faster than the A7.[3]

Products that include the Apple A8

See also

References

  1. ^ a b "Inside the iPhone 6 and iPhone 6 Plus". Chipworks. September 19, 2014. Retrieved September 20, 2014.
  2. ^ a b "iPhone 6 Plus Teardown". iFixit. September 18, 2014. Retrieved September 19, 2014.
  3. ^ a b Alleged iPhone 6 Geekbench Results Reveal 1.4 GHz Dual-Core A8 Chip, 1 GB of RAM
  4. ^ a b Smith, Ryan (September 9, 2014). "Apple Announces A8 SoC". AnandTech. Retrieved September 9, 2014.
  5. ^ a b Anthony, Sebastian. "Apple's A8 SoC analyzed: The iPhone 6 chip is a 2-billion-transistor 20nm monster". www.extremetech.com. ExtremeTech. Retrieved 10 September 2014.
  6. ^ Smith, Ryan (September 23, 2014). "Chipworks Disassembles Apple's A8 SoC: GX6450, 4MB L3 Cache & More". AnandTech. Retrieved September 23, 2014.
  7. ^ "Apple Announces iPhone 6 & iPhone 6 Plus—The Biggest Advancements in iPhone History" (Press release). Apple. September 9, 2014. Retrieved September 9, 2014.
  8. ^ Savov, Vlad (September 9, 2014). "iPhone 6 and iPhone 6 Plus have a new faster A8 processor". The Verge. Vox Media. Retrieved September 9, 2014.
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