imported>LLnnn252 来自 2025年7月8日 (二) 17:46

2025-07-08T17:46:59Z

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{{NoteTA|G1=IT}}
{{Infobox CPU
|name=ARM Cortex-X4
|fast-unit=
|image_size=
|alt=
|caption=

|produced-start=2023年
|produced-end=
|soldby=
|designfirm=[[Arm (企業)|ARM]]
|manuf1=
|cpuid=
|code=

|slowest=
|fastest=
|image=
|slow-unit=
|instructions=
|address-width=40-bit
|virtual-width= （每個核心包含 64 KiB 與 64 KiB 資料快取）

|l1cache={{Nowrap|128 [[Kibibyte|KiB]]}}{{Small|（每個核心包含{{Nowrap|64 KiB}}指令快取（具同位元檢查）與{{Nowrap|64 KiB}}資料快取）}}
|l2cache={{Nowrap|512–2048 KiB}}{{Small|（每核心）}}
|l3cache={{Nowrap|512 KiB – 32 MiB}}{{Small|（可選）}}
|l4cache=
|llcache=

|application=
|size-from=
|size-to=
|arch=[[ARMv9.2-A]]
|microarch=ARM Cortex-X4
|data-width=
|extensions=

|transistors=
|numcores=1–10{{Small|（每簇）}}
|gpu=
|co-processor=
|pack1=
|sock1=

|core1=
|pcode1="Hunter ELP"
|model1=
|brand1=
|variant=[[ARM Cortex-A720]]

|predecessor=[[ARM Cortex-X3]]
|successor=[[ARM Cortex-X925]]
}}
'''ARM Cortex-X4'''是[[Arm (企業)|ARM]]在TCS23（整体计算解决方案）中推出的[[多核心處理器|CPU 核心]]型号<ref>{{Cite web|title=Arm Total Compute Solution 2023 targets premium smartphones|url=https://www.embedded.com/arm-launches-total-compute-solution-2023-for-premium-smartphones/|website=Embedded.com|date=2023-06-02|language=en-US|last=Dahad|first=Nitin|access-date=2024-01-17|archive-date=2024-01-17|archive-url=https://web.archive.org/web/20240117222916/https://www.embedded.com/arm-launches-total-compute-solution-2023-for-premium-smartphones/|dead-url=no}}</ref>，它作为[[ARM Cortex-X3]]的后继产品，X系列CPU核心普遍注重高性能，CPU核心可以与该系列中的其他内核配对，例如CPU集群中的ARM Cortex-A720或/和ARM Cortex-A520<ref name=":3">{{Cite web|title=Arm Cortex-X4 advances frontiers of CPU performance - Announcements - Arm Community blogs - Arm Community|url=https://community.arm.com/arm-community-blogs/b/announcements/posts/cortex-x4-cpu-performance|website=community.arm.com|date=2023-05-29|language=en|access-date=2023-09-16|archive-date=2024-02-27|archive-url=https://web.archive.org/web/20240227200952/https://community.arm.com/arm-community-blogs/b/announcements/posts/cortex-x4-cpu-performance|dead-url=no}}</ref>。<ref name=":4">{{Cite web|title=Arm Introduces The Cortex-X4, Its Newest Flagship Performance Core|url=https://fuse.wikichip.org/news/7531/arm-introduces-the-cortex-x4-its-newest-flagship-performance-core/|website=WikiChip Fuse|date=2023-05-28|language=en-US|access-date=2023-05-30|archive-date=2024-05-06|archive-url=https://web.archive.org/web/20240506041255/https://fuse.wikichip.org/news/7531/arm-introduces-the-cortex-x4-its-newest-flagship-performance-core/|dead-url=no}}</ref><ref name=":0">{{Cite web|title=Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family|url=https://www.anandtech.com/show/18871/arm-unveils-armv92-mobile-architecture-cortex-x4-a720-and-a520-64bit-exclusive|website=www.anandtech.com|last=Bonshor|first=Gavin|access-date=2023-05-30|archive-date=2024-05-16|archive-url=https://web.archive.org/web/20240516064141/https://www.anandtech.com/show/18871/arm-unveils-armv92-mobile-architecture-cortex-x4-a720-and-a520-64bit-exclusive|dead-url=no}}</ref><ref>{{Cite web|title=TCS23: The complete platform for consumer computing - Announcements - Arm Community blogs - Arm Community|url=https://community.arm.com/arm-community-blogs/b/announcements/posts/third-generation-total-compute-solutions|website=community.arm.com|date=2023-05-29|language=en|access-date=2023-09-16|archive-date=2024-02-23|archive-url=https://web.archive.org/web/20240223132312/https://community.arm.com/arm-community-blogs/b/announcements/posts/third-generation-total-compute-solutions|dead-url=no}}</ref>

== 与[[ARM Cortex-X3]]相比的架构变化 ==
该处理器实现了以下更改：<ref name=":3"/><ref name=":4"/><ref name=":0"/>

* 微操作（MOP）缓存：已删除（之前为1.5k条目）
* 解码宽度：10
* 重命名/调度宽度：10（从8增加）
* [[重排序缓冲区|重新排序缓冲区]]（ROB）：384个条目（从320个增加）
* 执行端口：21（从15增加）
* [[指令管線化|管线]]长度：10（从9增加）
* 高达2 MiB的私有L2缓存（从1 MiB增加）
* DSU-120
** 最多14个核心（之前为12个核心）
** 高达32 MiB的共享L3缓存（从16 MiB增加）
* ARMv9.2

性能声明：

* 与智能手机中的Cortex-X3相比，峰值性能提高了15%（3.4GHz、2MB L2、8MB L3）。<ref name=":0"/>
* 当基于相同的进程、时钟速度和L3缓存（但2 MiB L2与1 MiB L2）设置（也称为ISO进程）时，IPC比Cortex-X3提升13%。<ref name=":0" />

== 架构比较 ==
{| class="wikitable"
![[微架構|微架构]]
!Cortex-A78
!Cortex-X1
!Cortex-X2
!Cortex-X3
!Cortex-X4
!Cortex-X925
|-
!峰值时钟速度
| colspan="3" |~3.0 GHz
|〜3.25 GHz
|~3.4 GHz
|
|-
!解码宽度
|4
| colspan="2" | 5
| 6
| 10 <ref name=":1">{{Cite web|title=Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive|url=https://www.androidauthority.com/arm-cortex-x4-explained-3328008/|website=Android Authority|date=2023-05-29|language=en|access-date=2023-06-01|archive-date=2024-02-24|archive-url=https://web.archive.org/web/20240224222501/https://www.androidauthority.com/arm-cortex-x4-explained-3328008/|dead-url=no}}</ref>
|
|-
!分发
|6/周期
| colspan="3" |8/周期
|10/周期
|
|-
!Max In-flight
|2x160
| 2x224
| 2x288
| 2x320
| 2x384
|
|-
! L0（Mops entries）
| 1536 <ref name=":2">{{Cite web|title=Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence|url=https://www.anandtech.com/show/15813/arm-cortex-a78-cortex-x1-cpu-ip-diverging|website=www.anandtech.com|last=Frumusanu|first=Andrei|access-date=2023-06-01|archive-date=2022-04-08|archive-url=https://web.archive.org/web/20220408045418/https://www.anandtech.com/show/15813/arm-cortex-a78-cortex-x1-cpu-ip-diverging|dead-url=no}}</ref>
| colspan="2" | 3,072 <ref name=":2" />
| 1536
|无<ref name=":1" />
|
|-
!L1-I + L1-D
| 32+32 KiB <ref>{{Cite web|title=Arm Cortex-X1: The First From The Cortex-X Custom Program|url=https://fuse.wikichip.org/news/3543/arm-cortex-x1-the-first-from-the-cortex-x-custom-program/|website=WikiChip Fuse|date=2020-05-26|language=en-US|last=Schor|first=David|access-date=2023-05-30|archive-date=2022-04-03|archive-url=https://web.archive.org/web/20220403212835/https://fuse.wikichip.org/news/3543/arm-cortex-x1-the-first-from-the-cortex-x-custom-program/|dead-url=no}}</ref>
| colspan="4" | 64+64KB
|
|-
! L2
| 128–512 KiB
| colspan="3" | 0.256 – 1 MiB
| 0.5 – 2 MiB
|
|-
! L3
| colspan="2" | 0–8 MiB
| colspan="2" | 0–16 MiB
| 0–32 MiB
|
|-
![[指令集架構|指令集架构]]
| colspan="2" |ARMv8.2
| colspan="2" | [[ARM架構|ARMv9]]
| ARMv9.2
|
|}

== 上市产品 ==

* [[聯發科技|联发科]][[聯發科技元件列表|天玑 9300]]<ref>{{Cite web|title=MediaTek says its Snapdragon 8 Gen 3 rival will be a beast (Updated)|url=https://www.androidauthority.com/mediatek-dimensity-chipset-arm-3330100/|website=Android Authority|date=2023-05-29|language=en|access-date=2023-09-16|archive-date=2024-02-24|archive-url=https://web.archive.org/web/20240224002330/https://www.androidauthority.com/mediatek-dimensity-chipset-arm-3330100/|dead-url=no}}</ref>

* [[高通]][[高通驍龍元件列表|骁龙8 第三代 (2023)]]<ref>{{Cite web|title=Qualcomm Snapdragon Tech Summit Live Blog: Compute Spotlight|url=https://www.anandtech.com/show/21109/qualcomm-snapdragon-tech-summit-live-blog-compute-spotlight/|website=Android Authority|date=2023-05-29|language=en|access-date=2023-09-16|archive-date=2024-02-24|archive-url=https://web.archive.org/web/20240224123728/http://www5.anandtech.com/show/21109/qualcomm-snapdragon-tech-summit-live-blog-compute-spotlight|dead-url=no}}</ref>

== 另见 ==

* [[ARM Cortex-A720]]，相关高效持续性能微架构
* [[ARM Cortex-A520]]，相关高效微架构

== 参考 ==
{{Reflist}}

[[Category:ARM架構]]

ARM Cortex-X4 - 版本历史

imported>LLnnn252 来自 2025年7月8日 (二) 17:46