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{{noteTA
|G1=IT
|G2=Unit
}}
{{Infobox CPU
| name = 蘋果A5
| image = Apple A5 Chip.jpg
| image_size = 144px
| caption =
| produced-start = 2011年3月11日
| produced-end = 2015年7月15日
| slowest = 800 MHz (用于iPhone, iPod)<br/>或1 GHz (用于iPad)
| fastest =
| slow-unit =
| fast-unit =
| fsb-slowest =
| fsb-fastest =
| fsb-slow-unit =
| fsb-fast-unit =
| hypertransport-slowest =
| hypertransport-fastest =
| hypertransport-slow-unit =
| hypertransport-fast-unit =
| size-from = [[45纳米制程|45 nm]]
| size-to = [[32纳米制程|32 nm]]<ref>{{cite web |url=http://leiphone.blog.techweb.com.cn/archives/3838.html |title=Apple TV特制A5芯片重大发现和推测 |date= |accessdate=2011-04-13 |archive-date=2012-04-13 |archive-url=https://web.archive.org/web/20120413155357/http://leiphone.blog.techweb.com.cn/archives/3838.html |dead-url=no }}</ref>
| soldby =
| designfirm = [[苹果公司|苹果]]
| manuf1 = [[三星電子]]
| core4 =
| sock1 =
| pack1 =
| brand1 =
| arch = [[ARM architecture|ARM]] v7
| microarch = Cortex-A9
| cpuid =
| code = S5L8940X (45 nm)<br />S5L8942X (32 nm)<br />S5L8947X (单核心, 32 nm)
| numcores = 同步双核
| l1cache = 32 kB 指令 + 32 kB 数据
| l2cache = 1 MB
| l3cache =
| application =
| predecessor = [[Apple A4]]
| successor = [[Apple A6]]
}}
[[File:Apple A5 Chip in iPad Mini.jpg|thumb|[[iPad mini (第一代)|iPad mini]]中的32nm制程A5芯片]]

'''蘋果A5''' 是由美國[[蘋果公司]]所設計並由[[三星電子]]所生產的[[ARM架構|ARM處理器]]，用於取代[[Apple A4]]。iPad 2是使用Apple A5處理器的第一款设备，2011年10月4日推出的iPhone 4S也採用Apple A5處理器，2012年10月推出的[[iPad Mini]]仍然继续采用了Apple A5处理器，安裝該晶片裝置廣泛的販售了多年之久。

Apple A5 采用 45 及 32 奈米Core ARM Cortex-A9同步双核心架构，蘋果公司聲稱其运算性能可提升2倍，其配備有IT公司頻率為200MHz的PowerVR SGX543 MP2 GPU，绘图性能較前一代A4提升7倍之多，具备低功耗特性，支援低功耗[[DDR2|DDR2 DRAM]]<ref>{{cite web |url=http://www.apple.com/ipad/features/ |title=Apple iPad 2 feature page |publisher=Apple.com |date= |accessdate=2011-03-15 |deadurl=yes |archiveurl=https://web.archive.org/web/20110316162215/http://www.apple.com/ipad/features/ |archivedate=2011-03-16 }}</ref><ref>{{cite web |url=http://www.appleinsider.com/articles/11/03/03/apples_a5_cpu_in_ipad_2_has_512mb_of_ram_same_as_iphone_4_report.html |title=Apple's A5 CPU in iPad 2 has 512MB of RAM, same as iPhone 4 |publisher=Appleinsider.com |date=2011-03-03 |accessdate=2011-03-15 |archive-date=2011-03-15 |archive-url=https://web.archive.org/web/20110315051007/http://www.appleinsider.com/articles/11/03/03/apples_a5_cpu_in_ipad_2_has_512mb_of_ram_same_as_iphone_4_report.html |dead-url=no }}</ref><ref>{{cite web |url=http://www.tipb.com/2011/03/03/tipb-answers-apple-a5-chip-guess/ |title=TiPb Answers: Apple A5 chip — what we know and what we guess |publisher=Tipb.com |date=2011-03-03 |accessdate=2011-03-15 |archive-date=2011-03-06 |archive-url=https://web.archive.org/web/20110306141931/http://www.tipb.com/2011/03/03/tipb-answers-apple-a5-chip-guess/ |dead-url=no }}</ref><ref>{{cite web |url=http://daringfireball.net/2011/03/the_ipad_2 |title=The iPad 2 – Daring Fireball |publisher=Daringfireball.net |date=2011-03-09 |accessdate=2011-03-15 |archive-date=2011-03-13 |archive-url=https://web.archive.org/web/20110313005807/http://daringfireball.net/2011/03/the_ipad_2 |dead-url=no }}</ref> 。A5的成本估計比A4貴75％，但隨著產量增加，價格差異應會減少。<ref>{{cite web | url=http://www.businessinsider.com/how-much-does-it-cost-to-build-the-ipad-2-2011-3 | title=It Costs $326.60 To Make An iPad 2 — Why That Matters | accessdate=March 14, 2011 | author=Pascal-Emmanuel Gobry | date=14 March 2011 | publisher=Business Insider, Inc. | archive-date=2012-12-29 | archive-url=https://www.webcitation.org/6DGMMVZcd?url=http://www.businessinsider.com/how-much-does-it-cost-to-build-the-ipad-2-2011-3 | dead-url=no }}</ref>

==Apple A5X ==
{{main|Apple A5X}}
Apple A5X是A5的衍生版本，圖形處理器升级至PowerVR SGX543 MP4，用於[[iPad (第三代)]]。

== 产品使用 ==
* Apple [[iPad 2]]
* Apple [[iPhone 4S]]
* Apple [[Apple TV|Apple TV 第三代]]
* Apple [[iPod Touch|iPod touch 5]]
* Apple [[iPad mini]]

==參見==
* [[Apple Silicon]]
* [[Apple A4]]
* [[Apple A6]]
* [[Apple A5X]]

==脚注==
{{reflist}}
== 外部連結 ==
* [http://www.pcworld.com/article/221163/ipad_2_whats_new_with_apples_a5_processor.html PCWorld – iPad 2: What's New With Apple's A5 Processor]{{Wayback|url=http://www.pcworld.com/article/221163/ipad_2_whats_new_with_apples_a5_processor.html |date=20110511154549 }}

{{苹果公司硬件}}
{{ARM芯片}}
[[Category:32位元微處理器]]
[[category:ARM架構]]
[[Category:Apple晶片]]
[[Category:2016年終止的產品與服務]]

Apple A5 - 版本历史

2026年3月8日 (日) 08:48 imported>Kdmjf12000