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ARM Cortex-X4

January 01, 1970

The ARM Cortex-X4 is a high-performance CPU core from Arm, released in 2023 as part of Arm's "total compute solution."[1] It serves as the successor of ARM Cortex-X3. X-series CPU cores generally focus on high performance, and can be grouped with other ARM cores, such as ARM Cortex-A720 or/and ARM Cortex-A520 in a System-on-Chip (SoC).[2][3][4][5]

ARM Cortex-X4
General information
Launched2023
Designed byARM Ltd.
Performance
Address width40-bit
Cache
L1 cache128 KiB (64 KiB I-cache with parity, 64 KiB D-cache) per core
L2 cache512–2048 KiB per core
L3 cache512 KiB – 32 MiB (optional)
Architecture and classification
MicroarchitectureARM Cortex-X4
Instruction setARMv9.2-A
Physical specifications
Cores
  • 1–10 per cluster
Products, models, variants
Product code name(s)
  • "Hunter ELP"
Variant(s)
History
Predecessor(s)ARM Cortex-X3
Successor(s)ARM Cortex-X5

Architecture changes in comparison with ARM Cortex-X3 edit

The processor implements the following changes:[2][3][4]

  • micro-op (MOP) cache removed (previously 1.5k entries)
  • Decode width: 10
  • Rename / Dispatch width: 10 (increased from 8)
  • Reorder buffer (ROB): 384 entries (increased from 320)
  • Execution ports: 21 (increased from 15)
  • Pipeline length: 10 (increased from 9)
  • Up to 2 MiB of private L2 cache (increased from 1 MiB)
  • DSU-120
    • Up to 14 cores (up from 12 cores)
    • Up to 32 MiB of shared L3 cache (increased from 16 MiB)
  • ARMv9.2

Performance claims:

  • 15% peak performance improvement over the Cortex-X3 in smartphones (3.4GHz, 2MB L2, 8MB L3).[4]
  • 13% IPC uplift over the Cortex-X3, when based on the same process, clock speed, and L3 cache (but 2 MiB L2 vs 1 MiB L2) setup (also known as ISO-process).[4]

Architecture comparison edit

uArch Cortex-A78 Cortex-X1 Cortex-X2 Cortex-X3 Cortex-X4 Cortex-X5
Peak clock speed ~3.0 GHz ~3.25 GHz ~3.4 GHz
Decode Width 4 5 6 10[6]
Dispatch 6/cycle 8/cycle 10/cycle
Max In-flight 2x160 2x224 2x288 2x320 2x384
L0 (Mops entries) 1536[7] 3,072[7] 1536 None[6]
L1-I + L1-D 32+32 KiB[8] 64+64 KiB
L2 128–512 KiB 0.256 – 1 MiB 0.5 – 2 MiB
L3 0–8 MiB 0–16 MiB 0–32 MiB
Architecture ARMv8.2 ARMv9 ARMv9.2

Usage edit

See also edit

References edit

  1. ^ Dahad, Nitin (2023-06-02). "Arm Total Compute Solution 2023 targets premium smartphones". Embedded.com. Retrieved 2024-01-17.
  2. ^ a b "Arm Cortex-X4 advances frontiers of CPU performance - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2023-05-29. Retrieved 2023-09-16.
  3. ^ a b "Arm Introduces The Cortex-X4, Its Newest Flagship Performance Core". WikiChip Fuse. 2023-05-28. Retrieved 2023-05-30.
  4. ^ a b c d Bonshor, Gavin. "Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family". www.anandtech.com. Retrieved 2023-05-30.
  5. ^ "TCS23: The complete platform for consumer computing - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2023-05-29. Retrieved 2023-09-16.
  6. ^ a b "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-01.
  7. ^ a b Frumusanu, Andrei. "Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence". www.anandtech.com. Retrieved 2023-06-01.
  8. ^ Schor, David (2020-05-26). "Arm Cortex-X1: The First From The Cortex-X Custom Program". WikiChip Fuse. Retrieved 2023-05-30.
  9. ^ "MediaTek says its Snapdragon 8 Gen 3 rival will be a beast (Updated)". Android Authority. 2023-05-29. Retrieved 2023-09-16.
  10. ^ "Qualcomm Snapdragon Tech Summit Live Blog: Compute Spotlight". Android Authority. 2023-05-29. Retrieved 2023-09-16.
 

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January 01, 1970
cortex, this, article, provides, insufficient, context, those, unfamiliar, with, subject, please, help, improve, article, providing, more, context, reader, july, 2023, learn, when, remove, this, message, high, performance, core, from, released, 2023, part, tot. This article provides insufficient context for those unfamiliar with the subject Please help improve the article by providing more context for the reader July 2023 Learn how and when to remove this message The ARM Cortex X4 is a high performance CPU core from Arm released in 2023 as part of Arm s total compute solution 1 It serves as the successor of ARM Cortex X3 X series CPU cores generally focus on high performance and can be grouped with other ARM cores such as ARM Cortex A720 or and ARM Cortex A520 in a System on Chip SoC 2 3 4 5 ARM Cortex X4General informationLaunched2023Designed byARM Ltd PerformanceAddress width40 bitCacheL1 cache128 KiB 64 KiB I cache with parity 64 KiB D cache per coreL2 cache512 2048 KiB per coreL3 cache512 KiB 32 MiB optional Architecture and classificationMicroarchitectureARM Cortex X4Instruction setARMv9 2 APhysical specificationsCores1 10 per clusterProducts models variantsProduct code name s Hunter ELP Variant s ARM Cortex A720HistoryPredecessor s ARM Cortex X3Successor s ARM Cortex X5 Contents 1 Architecture changes in comparison with ARM Cortex X3 2 Architecture comparison 3 Usage 4 See also 5 ReferencesArchitecture changes in comparison with ARM Cortex X3 editThe processor implements the following changes 2 3 4 micro op MOP cache removed previously 1 5k entries Decode width 10 Rename Dispatch width 10 increased from 8 Reorder buffer ROB 384 entries increased from 320 Execution ports 21 increased from 15 Pipeline length 10 increased from 9 Up to 2 MiB of private L2 cache increased from 1 MiB DSU 120 Up to 14 cores up from 12 cores Up to 32 MiB of shared L3 cache increased from 16 MiB ARMv9 2 Performance claims 15 peak performance improvement over the Cortex X3 in smartphones 3 4GHz 2MB L2 8MB L3 4 13 IPC uplift over the Cortex X3 when based on the same process clock speed and L3 cache but 2 MiB L2 vs 1 MiB L2 setup also known as ISO process 4 Architecture comparison edituArch Cortex A78 Cortex X1 Cortex X2 Cortex X3 Cortex X4 Cortex X5 Peak clock speed 3 0 GHz 3 25 GHz 3 4 GHz Decode Width 4 5 6 10 6 Dispatch 6 cycle 8 cycle 10 cycle Max In flight 2x160 2x224 2x288 2x320 2x384 L0 Mops entries 1536 7 3 072 7 1536 None 6 L1 I L1 D 32 32 KiB 8 64 64 KiB L2 128 512 KiB 0 256 1 MiB 0 5 2 MiB L3 0 8 MiB 0 16 MiB 0 32 MiB Architecture ARMv8 2 ARMv9 ARMv9 2Usage editMediaTek Dimensity 9300 9 Qualcomm Snapdragon 8 Gen 3 2023 10 See also editARM Cortex A720 related efficient sustained performance microarchitecture ARM Cortex A520 related high efficient microarchitecture Comparison of ARMv8 A coresReferences edit Dahad Nitin 2023 06 02 Arm Total Compute Solution 2023 targets premium smartphones Embedded com Retrieved 2024 01 17 a b Arm Cortex X4 advances frontiers of CPU performance Announcements Arm Community blogs Arm Community community arm com 2023 05 29 Retrieved 2023 09 16 a b Arm Introduces The Cortex X4 Its Newest Flagship Performance Core WikiChip Fuse 2023 05 28 Retrieved 2023 05 30 a b c d Bonshor Gavin Arm Unveils 2023 Mobile CPU Core Designs Cortex X4 A720 and A520 the Armv9 2 Family www anandtech com Retrieved 2023 05 30 TCS23 The complete platform for consumer computing Announcements Arm Community blogs Arm Community community arm com 2023 05 29 Retrieved 2023 09 16 a b Arm Cortex X4 A720 and A520 2024 smartphone CPUs deep dive Android Authority 2023 05 29 Retrieved 2023 06 01 a b Frumusanu Andrei Arm s New Cortex A78 and Cortex X1 Microarchitectures An Efficiency and Performance Divergence www anandtech com Retrieved 2023 06 01 Schor David 2020 05 26 Arm Cortex X1 The First From The Cortex X Custom Program WikiChip Fuse Retrieved 2023 05 30 MediaTek says its Snapdragon 8 Gen 3 rival will be a beast Updated Android Authority 2023 05 29 Retrieved 2023 09 16 Qualcomm Snapdragon Tech Summit Live Blog Compute Spotlight Android Authority 2023 05 29 Retrieved 2023 09 16 nbsp This computer engineering related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title ARM Cortex X4 amp oldid 1211241477, wikipedia, wiki, book, books, library,

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