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{{noteTA
|G1=IT
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{{Infobox CPU
| name = Apple A11 “仿生”
| image = Apple A11.jpg
| image_size = 200px
| caption =
| produced-start = 2017年9月12日
| slowest =
| slow-unit =
| fastest = 2.39GHz
| fast-unit =
| size-from = [[10纳米制程|10 nm]]<ref name="AnandTech iPhone X" />
| size-to =
| soldby =
| designfirm = [[苹果公司]]
| manuf1 = [[台積電]]<ref name="AnandTech iPhone X" />
| arch = [[ARM架構|A64]]
| microarch = 兼容ARMv8-A
| code =
| numcores = 六核心<ref name="AnandTech iPhone X" /><ref name="macrumorsGMLeak" />
| l1cache = 64 KB 指令, 64 KB 資料<ref>{{cite web|url=https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling-the-silicon-secrets/2|title=Measured and Estimated Cache Sizes|publisher=AnandTech|date=October 5, 2018|access-date=2022-05-19|archive-date=2018-10-06|archive-url=https://web.archive.org/web/20181006075306/https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling-the-silicon-secrets/2|dead-url=no}}</ref>
| l2cache =8 MB
| l3cache =
| application = [[行動裝置]]
| gpu = Apple-designed 3 core<ref name="Apple iPhone 8 PR" />
| predecessor = [[Apple A10 Fusion]]
| successor = [[Apple A12 Bionic]]
| variant =
}}

'''Apple A11 “仿生”'''（Bionic）是一款由[[蘋果公司]]設計的，於2017年9月12日發表的[[64位]][[系統單晶片]]（SoC），並被首先搭載於[[iPhone 8]]、[[iPhone 8|iPhone 8 Plus]]及[[iPhone X]]三款[[智慧型手機]]中。<ref name="Apple iPhone 8 PR">{{cite press release|url=https://www.apple.com/newsroom/2017/09/iphone-8-and-iphone-8-plus-a-new-generation-of-iphone/|title=iPhone 8 and iPhone 8 Plus: A new generation of iPhone|publisher=Apple|date=2017-09-12|accessdate=2017-09-12|archive-date=2017-09-12|archive-url=https://web.archive.org/web/20170912235005/https://www.apple.com/newsroom/2017/09/iphone-8-and-iphone-8-plus-a-new-generation-of-iphone/|dead-url=no}}</ref>

== 設計 ==
A11的CPU部分為六核心設計，由2顆代號為「季風」（Monsoon）的高性能核心及4顆代號為「西北風」（Mistral）的節能核心以[[big.LITTLE]]組態組成，具備容量達 8 MB 的二級[[CPU缓存|快取]]，但取消了三級快取。<ref>{{Cite web |url=https://hothardware.com/news/apple-a11-bionic-processor-crushes-challengers-benchmark-leak |title=存档副本 |access-date=2017-09-15 |archive-url=https://web.archive.org/web/20180129184758/https://hothardware.com/news/apple-a11-bionic-processor-crushes-challengers-benchmark-leak |archive-date=2018-01-29 |dead-url=yes }}</ref><ref name="AnandTech iPhone X">{{cite web |last=Cutress |first=Ian |url=http://www.anandtech.com/show/11835/apple-2017-the-iphone-x-ten |title=Apple 2017: The iPhone X (Ten) Announced |publisher=AnandTech |date=2017-09-12 |accessdate=2017-09-12 |archive-date=2017-09-13 |archive-url=https://web.archive.org/web/20170913135139/http://www.anandtech.com/show/11835/apple-2017-the-iphone-x-ten |dead-url=no }}</ref><ref name="Apple iPhone 8 PR" /><ref name="macrumorsGMLeak">{{cite web |last=Clover |first=Julie |url=https://www.macrumors.com/2017/09/10/ios11-gm-faceid-apple-pay-a11/ |title=iOS 11 GM Leak Reveals Details on Face ID, Apple Pay, Wireless Charging, and A11 Chip in iPhone X |publisher=MacRumors |date=2017-09-10 |accessdate=2017-09-13 |archive-date=2017-09-13 |archive-url=https://web.archive.org/web/20170913135455/https://www.macrumors.com/2017/09/10/ios11-gm-faceid-apple-pay-a11/ |dead-url=no }}</ref>A11與前代晶片最大的不同是使用第二代性能控制器，採用[[big.LITTLE#異构多處理機（全域任務排程）|HMP全域任務排程]]形式能使6顆CPU核心得以同時運行<ref name="Apple iPhone X PR">{{cite press release |url=https://www.apple.com/newsroom/2017/09/the-future-is-here-iphone-x/ |title=The future is here: iPhone X |publisher=Apple |date=2017-09-12 |accessdate=2017-09-12 |archive-date=2018-04-01 |archive-url=https://web.archive.org/web/20180401112702/https://www.apple.com/newsroom/2017/09/the-future-is-here-iphone-x/ |dead-url=no }}</ref>。蘋果公司一如既往不公開A11的CPU時脈資訊，不過根據某些效能測試工具（如GeekBench）的大略量度，高效能CPU核心的最高時脈大約為 2.5 GHz，節電CPU核心的最高時脈大約為 1.5 GHz。<ref>{{cite web|title=iPhone 8/X A11 處理器跑分搶先曝光|url=https://www.newmobilelife.com/2017/09/14/a11-bionic-cpu-benchmark/|accessdate=2017-09-16|archive-date=2017-09-17|archive-url=https://web.archive.org/web/20170917034045/https://www.newmobilelife.com/2017/09/14/a11-bionic-cpu-benchmark/|dead-url=no}}</ref>

作為一款系統單晶片，A11除了整合了由[[蘋果公司]]所設計之3核心[[圖形處理器]]（GPU）以外，也開始內建支援光照環境偵測和先進像素處理的圖像處理單元（ISP）<ref name="Apple iPhone 8 PR" />，另A11亦包含了每秒能夠演算出6000億筆指令，被蘋果公司命名為Neural Engine的[[神經網路]]專用加速電路模組，以運用於[[Face ID]]、[[Animoji]]及其他[[機器學習]]任務上<ref name="Apple iPhone X PR" />。不過整合深度學習引擎的SoC，此前[[高通Snapdragon|高通驍龍820]]是第一個嘗試<ref>{{cite web|last1=Hardware|first1=HKEPC|title=率先賦與 S820 深度運算學習能力 Qualcomm 神經網絡運算引擎SDK|url=http://www.hkepc.com/13969/|website=HKEPC Hardware|language=zh-TW|accessdate=2017-10-21|archive-date=2017-10-21|archive-url=https://web.archive.org/web/20171021220621/http://www.hkepc.com/13969/|dead-url=no}}</ref>，而[[華為技術]]早前推出的[[海思半導體|麒麟970]]也宣稱內建了自家開發的深度學習引擎。至於整合ISP，也是行動裝置SoC業界的常見設計。<ref>{{cite web|title=蘋果 A11 Bionic 處理器的弦外之音... - 癮科技|url=https://www.cool3c.com/article/128898|website=癮科技|language=zh-hant|date=2017-09-13|accessdate=2017-09-16|archive-date=2017-09-16|archive-url=https://web.archive.org/web/20170916225315/https://www.cool3c.com/article/128898|dead-url=no}}</ref>

A11由[[台積電]]代工生產<ref name="AnandTech iPhone X" />，內含43億個[[晶體管]]<ref name="iPhone 8 A11"/>。

蘋果公司稱相較於前代的[[Apple A10 Fusion]]，CPU部分高效能核心和節電核心的效能分別提升25%及70%，GPU效能較前代提升30%。<ref name="Apple iPhone 8 PR" /><ref name="iPhone 8 A11">{{cite web |url=https://www.apple.com/iphone-8/#a11 |title=iPhone 8: A11 Bionic |website=Apple |date=2017-09-12 |access-date=2017-09-12 |archive-date=2017-11-01 |archive-url=https://web.archive.org/web/20171101090845/https://www.apple.com/iphone-8/#a11 |dead-url=no }}</ref>

==產品使用 ==
* [[iPhone 8]]
* [[iPhone 8 Plus]]
* [[iPhone X]]

==參見==
* [[Apple Silicon]]
*{{le|蘋果移動應用處理器|Apple mobile application processors}}
* [[Apple A10 Fusion|Apple A10]]
* [[Apple A12 Bionic|Apple A12]]

== 參考文獻 ==
{{reflist|2}}

{{Apple hardware}}
{{ARM晶片}}
[[Category:ARM架構]]
[[Category:Apple晶片]]
[[Category:64位元微處理器]]

Apple A11 Bionic - 版本历史

imported>Kdmjf12000 来自 2026年3月8日 (日) 08:43