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Krait (CPU) - 版本历史
2026-07-17T13:24:22Z
在这个wiki上该页的修订历史
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imported>Adachan06：修正失效錨點
2025-09-26T09:58:07Z
<p>修正失效錨點</p>
<p><b>新页面</b></p><div>{{noteTA<br />
|G1=IT<br />
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{{Infobox CPU<br />
| name = Krait <br />
| image = <br />
| image_size = <br />
| caption = <br />
| produced-start = 2012年<br />
| produced-end = <br />
| slowest = 1<br />
| fastest = 2.7<br />
| slow-unit = GHz<br />
| fast-unit = GHz<br />
| fsb-slowest = <br />
| fsb-fastest = <br />
| fsb-slow-unit = <br />
| fsb-fast-unit = <br />
| size-from = <br />
| size-to = <br />
| soldby =<br />
| designfirm = [[高通]]<br />
| manuf1 = 高通<br />
| core1 = <br />
| pack1 =<br />
| brand1 =<br />
| arch = [[ARM架構|ARM]], [[ARM架構#Thumb-2|Thumb-2]]<br />
| microarch = <br />
| cpuid =<br />
| code =<br />
| numcores = 2～4<br />
| l1cache = 16 KiB + 16 KiB<br />
| l2cache = 1 MiB～2 MiB<br />
| l3cache =<br />
| application =<br />
| predecessor = [[Scorpion (CPU)|Scorpion]]<br />
| successor = [[Kryo (CPU)|Kryo]]<br />
}}<br />
<br />
'''Krait'''是[[高通]]設計的[[ARM架構|ARMv7]]相容[[中央處理單元]]，使用於[[驍龍]]S4及驍龍400/600/800/801/805系列系統晶片（[[SoC]]）上，於2012年發表並接替舊有的Scorpion處理器核心，大致的效能相當於{{le|ARM Cortex-A9 MPCore|ARM Cortex-A9 MPCore|ARM Cortex-A9}}至[[ARM Cortex-A15 MPCore|Cortex-A15]]的水準，但並不適用於[[big.LITTLE]]結構。<ref>{{cite web | url=http://www.anandtech.com/show/4940/qualcomm-new-snapdragon-s4-msm8960-krait-architecture | title=Qualcomm's New Snapdragon S4: MSM8960 & Krait Architecture Explored | publisher=[[Anandtech]] | date=October 7, 2011 | author1=Brian Klug | author2=Anand Lal Shimpi | accessdate=2013-07-28 | archive-date=2012-11-06 | archive-url=https://web.archive.org/web/20121106064416/http://www.anandtech.com/show/4940/qualcomm-new-snapdragon-s4-msm8960-krait-architecture | dead-url=yes }}</ref><br />
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== 概觀 ==<br />
* 11級、帶三路解碼的整數流水線，四路帶[[分支預測|預測執行]]的[[超純量]][[亂序執行]]<br />
* [[指令管線化]]的VFPv4<ref>{{cite web | url=http://www.anandtech.com/show/5559/qualcomm-snapdragon-s4-krait-performance-preview-msm8960-adreno-225-benchmarks/2 | title=Qualcomm Snapdragon S4 (Krait) Performance Preview - 1.5 GHz MSM8960 MDP and Adreno 225 Benchmarks | publisher=[[Anandtech]] | date=February 21, 2012 | author1=Brian Klug | author2=Anand Lal Shimpi | accessdate=2013-07-28 | archive-date=2013-07-29 | archive-url=https://web.archive.org/web/20130729085526/http://www.anandtech.com/show/5559/qualcomm-snapdragon-s4-krait-performance-preview-msm8960-adreno-225-benchmarks/2 | dead-url=no }}</ref>，128位元寬度的[[ARM架構#進階SIMD（NEON）|NEON]] [[SIMD]]單元<br />
* 7個執行端口<br />
* 4 KB資料 + 4 KB指令直接映射快取（L0 [[CPU快取|cache]]）<br />
* 16 KB資料 + 16 KB指令，4路組合的一級快取<br />
* 1 MB（雙CPU核心）或 2 MB（四CPU核心），8路組合的二級快取<br />
* [[多核心處理器|雙CPU核心]]或 4 CPU核心配置<br />
* 效能（DMIPS/MHz）：<br />
** Krait 200: 3.3 （28奈米LP[[製程]]）<br />
** Krait 300: 3.39<ref>{{cite web | url=http://www.linleygroup.com/newsletters/newsletter_detail.php?num=4920 | title=Krait 300 Bumps Up Performance | work=Linley on Mobile | publisher=The Linley Group | date=December 18, 2012 | author=Linley Gwennap | accessdate=2013-07-28 | archive-date=2018-12-30 | archive-url=https://web.archive.org/web/20181230132756/https://www.linleygroup.com/newsletters/newsletter_detail.php?num=4920 | dead-url=no }}</ref>（28[[奈米]]LP製程）<br />
** Krait 400: 3.39（28奈米HPm製程）<br />
** Krait 450: 3.51（28奈米HPm製程）<br />
* 驍龍S4及驍龍400使用Krait 200核心，驍龍600以及部份驍龍S4 Pro （APQ8064 1AA）使用Krait 300核心，驍龍800/801使用Krait 400核心，Krait 450則用於驍龍805 SoC上<br />
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== 參見 ==<br />
* {{le|ARMv7處理器內核列表|Comparison of ARMv7-A cores}}<br />
* [[高通驍龍元件列表]]<br />
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== 參考資料 ==<br />
{{Reflist}}<br />
<br />
{{ARM晶片}}<br />
<br />
[[Category:ARM架構|Qualcomm]]<br />
[[Category:高通]]</div>
imported>Adachan06