Apple A8 sahifasining manbasini koʻrish

 

'''Apple A8 -''' bu Apple Inc tomonidan ishlab chiqilgan chip (SoC) ustidagi 64-bitli ARM-ga asoslangan tizim. U marta 2014-yilning 9-sentabrda taqdim etilgan iPhone 6 va iPhone 6 Plus da paydo boʻldi<ref name="Apple iPhone 6 PR">{{Press-reliz manbasi |url=https://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 |access-date=September 9, 2014 |archive-date=September 9, 2014 |archive-url=https://web.archive.org/web/20140909213704/http://www.apple.com/pr/library/2014/09/09Apple-Announces-iPhone-6-iPhone-6-Plus-The-Biggest-Advancements-in-iPhone-History.html |url-status=live}}</ref>. Apple oʻzidan oldingi Apple A7 quvvatining atigi 50% quvvatini tortib, 25% koʻproq protsessor hamda 50% koʻproq grafik unumdorlikka ega ekanligini taʼkidlaydi. Ushbu chipdan foydalanadigan 1,1GHz va 1,4GHz variantlar tizimlari uchun dasturiy taʼminotning soʻnggi yangilanishlari 2023-yilning 23-yanvarda chiqarilgan iOS 12.5.7 boʻlib, 2019-yilda iOS 13<ref name="Verge A8">{{Yangiliklar manbasi |last=Savov |first=Vlad |date=September 9, 2014 |title=iPhone 6 and iPhone 6 Plus have a new faster A8 processor |work=[[The Verge]] |publisher=Vox Media |url=https://www.theverge.com/2014/9/9/6127111/iphone-6-and-iphone-6-plus-have-a-new-faster-a8-processor |url-status=live |access-date=September 9, 2014 |archive-url=https://web.archive.org/web/20140910225625/http://www.theverge.com/2014/9/9/6127111/iphone-6-and-iphone-6-plus-have-a-new-faster-a8-processor |archive-date=September 10, 2014}}</ref> va 1,5GHz variantning chiqarilishi bilan toʻxtatilgan edi. iPad Mini 4 yani iPadOS 15.7.7, 2023-yilning 21-iyunda chiqarilgan, chunki u 2022-yilda iPadOS 16 ning chiqarilishi bilan toʻxtatilgan, Apple TV HD uchun esa 1,5 GHz variant uchun yangilanishlar davom etmoqda. A8 chipi 2022-yilning 18-oktabrda Apple TV HD ishlab chiqarilishi toʻxtatilgandan soʻng toʻxtatildi<ref>{{Veb manbasi |muallif=Clark |ism=Mitchell |sana=2022-10-18 |sarlavha=The Apple TV HD is no longer available on Apple's store |url=https://www.theverge.com/2022/10/18/23410961/apple-tv-hd-no-longer-available-4k-a8 |qaralgan sana=2022-10-18 |ish=The Verge |til=en-US}}</ref>.

== Dizayn ==
A8 20 da ishlab chiqariladi 20nm jarayoni<ref name="AnandTech-Apple-Announces-A8">{{Veb manbasi |muallif=Smith |ism=Ryan |url=http://www.anandtech.com/show/8504/apple-announces-a8-soc |sarlavha=Apple Announces A8 SoC |nashriyot=[[AnandTech]] |sana=September 9, 2014 |qaralgan sana=September 9, 2014 |arxivsana=September 10, 2014 |arxivurl=https://web.archive.org/web/20140910200128/http://www.anandtech.com/show/8504/apple-announces-a8-soc}}</ref> TSMC tomonidan Apple mobil qurilmalari protsessorlari ishlab chiqaruvchisi sifatida Samsung oʻrnini egalladi. U 2 milliard tranzistorni oʻz ichiga oladi. A7 tranzistorlarining soni 2 baravar koʻp boʻlishiga qaramay, A8 ning jismoniy oʻlchami 13% ga {{Convert|89|mm2|in2|abbr=on}} gacha qisqardi. A8 64 bitli xotira interfeysida LPDDR3-1333 operativ xotiradan foydalanadi; iPhone 6/6 Plus, 6-avlod iPod Touch va HomePod da A8 1GB RAM ga ega. Paketga Shu bilan birga, iPad Mini 4 va 4-avlod Apple TVdagi A8 2GB RAM oʻrnatilgan<ref name="AnandTech iPad Pro Announced">{{Veb manbasi |url=http://www.anandtech.com/show/9615/apple-announces-the-ipad-mini-4 |ism=Brandon |muallif=Chester |sarlavha=Apple Announces the iPad Pro and iPad Mini 4 |nashriyot=[[AnandTech]] |sana=September 9, 2015 |qaralgan sana=September 9, 2015 |arxivsana=October 9, 2016 |arxivurl=https://web.archive.org/web/20161009060117/http://www.anandtech.com/show/9615/apple-announces-the-ipad-mini-4}}</ref><ref name="Apple TV Dev Docs">{{Veb manbasi |url=https://developer.apple.com/library/prerelease/tvos/documentation/General/Conceptual/AppleTV_PG/ |sarlavha=The New Apple TV |nashriyot=[[Apple Inc.]] |sana=September 9, 2015 |qaralgan sana=September 9, 2015 |arxivsana=September 9, 2015 |arxivurl=https://web.archive.org/web/20150909235117/https://developer.apple.com/library/prerelease/tvos/documentation/General/Conceptual/AppleTV_PG/}}</ref>.

A8 protsessorida 64 yadroli L1 kesh mavjud boʻlib, maʼlumotlar uchun 64 KB va koʻrsatmalar uchun 64 KB, L2 keshi 1 MB ikkala protsessor yadrolari tomonidan taqsimlanadi hamda butun SoC ga xizmat koʻrsatadigan 4 MB L3 keshi. Oʻzidan oldingi versiya sifatida u 6 ta dekodlangan, 6 ta nashr, 9 ta keng, tartibsiz dizaynga ega. Protsessor 2 yadroli boʻlib, iPhone 6 da ishlatilganidek 1,4 GHz chastotaga ega va bu Apple kompaniyasining A7 dan 25%ga tez ekanligi haqidagi daʼvosini qoʻllab-quvvatlaydi<ref name="Geekbench">{{Veb manbasi |url=http://www.macrumors.com/2014/09/09/iphone-6-geekbench-1-4-ghz-dual-core-a8-1gb-ram/ |sarlavha=Alleged iPhone 6 Geekbench Results Reveal 1.4 GHz Dual-Core A8 Chip, 1 GB of RAM |qaralgan sana=2014-09-09 |arxivsana=2014-09-11 |arxivurl=https://web.archive.org/web/20140911002142/http://www.macrumors.com/2014/09/09/iphone-6-geekbench-1-4-ghz-dual-core-a8-1gb-ram/}}</ref>. Shuningdek, u '''Typhoon''' deb nomlangan 2-avlod<ref>{{Veb manbasi |url=https://www.apple.com/iphone-6/technology/ |sarlavha=Apple - iPhone 6 - Technology |qaralgan sana=2014-10-18 |arxivsana=2014-09-09 |arxivurl=https://web.archive.org/web/20140909194049/https://www.apple.com/iphone-6/technology/}}</ref> takomillashtirilgan siklon yadrosi degan tushunchani ham qoʻllab-quvvatlaydi, hamda bu mutlaqo yangi arxitektura emas, bu har Hz chastotada unumdorlikni oshirishni anglatadi.

A8 shuningdek, 4-shader-klasterli PowerVR Series 6XT boʻlgan grafik ishlov berish blokini ham yani (GPU) bilan birlashtiradi<ref>{{Veb manbasi |url=http://www.anandtech.com/show/8554/the-iphone-6-review/4 |sarlavha=The iPhone 6 Review: A8's GPU: Imagination Technologies' PowerVR GX6450 |nashriyot=AnandTech |sana=September 30, 2014 |qaralgan sana=September 30, 2014 |arxivsana=October 1, 2014 |arxivurl=https://web.archive.org/web/20141001023540/http://anandtech.com/show/8554/the-iphone-6-review/4}}</ref>. Biroq, GPU Apple tomonidan ishlab chiqilgan maxsus shader yadrolariga ega.

2014-yilning 16-oktabrda Apple iPad Air 2 da A8 ning A8X variantini taqdim etdi. A8 bilan solishtirganda, A8X takomillashtirilgan 8-shader-klasterli GPU hamda 1ta qoʻshimcha yadro va yuqori chastota tufayli yaxshilangan CPU ishlashiga ega.

A8 H.264 uchun video kodek kodlashni qoʻllab-quvvatlaydi va u H.264, MPEG‑4 va Motion JPEG uchun dekodlashni qoʻllab-quvvatlaydi<ref>{{Veb manbasi |sarlavha=iPhone 6 - Technical Specifications |url=https://support.apple.com/kb/SP705?locale=en_US |qaralgan sana=2022-11-05 |ish=support.apple.com}}</ref>.

== Patent daʼvosi ==
A8 ning filiali bashoratchisi 1998-yilgi patentni buzganligi daʼvo qilingan<ref>{{Veb manbasi |url=https://www.theregister.co.uk/2014/02/04/cupertino_copied_processor_pipelining_claims_wisconsin_u/ |sarlavha=Cupertino copied processor pipelining claims Wisconsin U |muallif=Chirgwin |ism=Richard |sana=February 4, 2014 |ish=www.theregister.co.uk |nashriyot=The Register |qaralgan sana=February 3, 2014 |arxivsana=February 4, 2014 |arxivurl=https://web.archive.org/web/20140204072902/http://www.theregister.co.uk/2014/02/04/cupertino_copied_processor_pipelining_claims_wisconsin_u/}}</ref><ref name="ars-a7patentswisconsin">{{Yangiliklar manbasi |last=Joe Mullin |date=October 14, 2015 |title=Apple faces $862M patent damage claim from University of Wisconsin |publisher=[[Ars Technica]] |url=https://arstechnica.com/tech-policy/2015/10/apple-faces-862m-patent-damage-claim-from-university-of-wisconsin/ |url-status=live |access-date=October 14, 2015 |archive-url=https://web.archive.org/web/20170420045722/https://arstechnica.com/tech-policy/2015/10/apple-faces-862m-patent-damage-claim-from-university-of-wisconsin/ |archive-date=April 20, 2017}}</ref> 2015-yil 14-oktyabrda tuman sudyasi Apple kompaniyasini AQSh patentini buzganlikda aybdor deb topdi.  Apple A7 va A8 protsessorlarida „Paralel ishlov berish kompyuteri uchun jadval asosidagi maʼlumotlar spekulyatsiyasi sxemasi“<ref name="ars-a7patentswisconsin" />. Patent Viskonsin universiteti bilan bogʻliq boʻlgan Viskonsin bitiruvchilari tadqiqot jamgʻarmasiga (WARF) tegishli. 2017-yilning 24-iyulida Apple ga patentni buzganlik uchun WARFga 506 million dollar toʻlash majburiyati yuklangan. Apple 2017-yilning 26-oktabr kuni AQShning Federal Apellyatsiya sudiga Apple kompaniyasi Viskonsin shtati bitiruvchilari tadqiqot jamgʻarmasiga tegishli patentni buzmaganligi haqidagi apellyatsiya arizasini topshirdi<ref>{{Yangiliklar manbasi |last=Wolfe |first=Jan |date=October 26, 2017 |title=Apple urges appeals court to toss $506 million patent loss to WARF |publisher=[[Reuters]] |url=https://www.reuters.com/article/ip-patent-apple/apple-urges-appeals-court-to-toss-506-million-patent-loss-to-warf-idUSL2N1N12RW |url-status=live |access-date=February 22, 2018 |archive-url=https://web.archive.org/web/20180223050957/https://www.reuters.com/article/ip-patent-apple/apple-urges-appeals-court-to-toss-506-million-patent-loss-to-warf-idUSL2N1N12RW |archive-date=February 23, 2018}}</ref>. 2018-yilning 28-sentyabrda qaror apellyatsiya tartibida bekor qilindi va AQSh Federal Apellyatsiya sudi tomonidan qaror bekor qilindi<ref>{{Yangiliklar manbasi |last=Stempel |first=Jonathan |date=September 28, 2018 |title=Apple wins reversal in University of Wisconsin patent lawsuit |publisher=Reuters |url=https://www.reuters.com/article/us-apple-decision-patent/apple-wins-reversal-in-university-of-wisconsin-patent-lawsuit-idUSKCN1M81TV |url-status=live |access-date=November 17, 2018 |archive-url=https://web.archive.org/web/20181117105059/https://www.reuters.com/article/us-apple-decision-patent/apple-wins-reversal-in-university-of-wisconsin-patent-lawsuit-idUSKCN1M81TV |archive-date=November 17, 2018}}</ref>. Patentning amal qilish muddati 2016-yilning dekabr oyida tugadi<ref>{{Yangiliklar manbasi |last=Wolfe |first=Jan |date=July 25, 2017 |title=Apple ordered to pay $506 million to university in patent dispute |publisher=[[Reuters]] |url=https://www.reuters.com/article/us-ip-apple-patent-idUSKBN1AB023 |url-status=live |access-date=July 26, 2017 |archive-url=https://web.archive.org/web/20170726015547/https://www.reuters.com/article/us-ip-apple-patent-idUSKBN1AB023 |archive-date=July 26, 2017}}</ref>.

== Apple A8 ni oʻz ichiga olgan mahsulotlar ==

* iPhone 6 va 6 Plus
* iPod Touch (6-avlod)
* iPad Mini 4
* Apple TV HD (avvalgi 4-avlod)
* HomePod (1-avlod)

== Galereya ==
[[Fayl:A8_APL1011_iPhone6_mlb_820-3486-A.jpg|center|thumb| iPhone 6 asosiy mantiqiy platasida A8 SoC.]]


== Shuningdek qarang ==

* Apple silicon, Apple tomonidan ishlab chiqilgan ARM-ga asoslangan protsessorlar qatori.
* ARMv8-A yadrolarini solishtirish
* Apple A8X
== Manbalar ==
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[[Turkum:IPhone]]