ARM Cortex-X4

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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]

Contents

ARM Cortex-X4
General information
Launched2023
Designed by ARM Ltd.
Performance
Address width40-bit
Cache
L1 cache 128 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
Microarchitecture ARM Cortex-X4
Instruction set ARMv9.2-A
Physical specifications
Cores
  • 1–10 per cluster
Products, models, variants
Product code name
  • "Hunter ELP"
Variant
History
Predecessor ARM Cortex-X3
Successor ARM Cortex-X925

Architecture changes in comparison with ARM Cortex-X3

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

Performance claims:

Architecture comparison

uArchCortex-A78Cortex-X1Cortex-X2Cortex-X3Cortex-X4Cortex-X925
Peak clock speed~3.0 GHz~3.25 GHz~3.4 GHz~3.8 Ghz
Decode Width45610 [6] 10
Dispatch6/cycle8/cycle10/cycle10/cycle
Max In-flight2x1602x2242x2882x3202x3842x768
L0 (Mops entries)1536 [7] 3,072 [7] 1536None [6]
L1-I + L1-D32+32 KiB [8] 64+64 KiB64+64 KiB
L2128–512 KiB256KiB – 1 MiB0.5 – 2 MiB0.5 – 3MiB
L30–8 MiB0–16 MiB0–32 MiB0–32 MiB
Architecture ARMv8.2 ARMv9 ARMv9.2 ARMv9.2

Usage

See also

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References

  1. ↑ Dahad, Nitin (2023-06-02). "Arm Total Compute Solution 2023 targets premium smartphones". Embedded.com. Retrieved 2024-01-17.
  2. 1 2 "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. 1 2 "Arm Introduces The Cortex-X4, Its Newest Flagship Performance Core". WikiChip Fuse. 2023-05-28. Retrieved 2023-05-30.
  4. 1 2 3 4 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. 1 2 "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-01.
  7. 1 2 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.
  11. ↑ "Latest Pixel 9 leak gives us a look at the Tensor G4 specs and benchmarks". Android Authority. 2024-06-01. Retrieved 2024-06-01.
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