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ARM Cortex-X3

From Wikipedia, the free encyclopedia
CPU core
ARM Cortex-X3
General information
Launched2022
Designed byArm
Performance
Max.CPUclock rate3.3 GHz to 3.6 GHz
Address width40-bit
Cache
L1cache128KiB
(64 KiBI-cache with parity,
64 KiBD-cache) per core
L2 cache256–1024 KiBper core
L3 cache512 KiB – 16 MiB(optional)
Architecture and classification
MicroarchitectureARM Cortex-X3
Instruction setARMv9.0-A
Physical specifications
Cores
  • 1–8 (per cluster)
Products, models, variants
Product code name
  • Makalu ELP
Variant
History
PredecessorARM Cortex-X2
SuccessorARM Cortex-X4

TheARM Cortex-X3 is the third generation X-series high-performance CPU core fromArm.[1][2]

It forms part of Arm's Total Compute Solutions 2022 (TCS22) along with Arm'sCortex-A715,Cortex-A510,Immortalis-G715 and CoreLink CI-700/NI-700.[3]

Architecture changes in comparison withARM Cortex-X2

[edit]

The processor implements the following changes:[4]

  • Decode width: 6 (increased from 5)
  • Rename / Dispatch width: 8
  • micro-op (MOP) cache: 1.5k entries (reduced from 3k)
  • Reorder buffer (ROB): 320 entries (increased from 288)
  • Execution ports: 15
  • Pipeline length: 9 (reduced from 10)

Performance claims:

  • 25% peak performance improvement over theARM Cortex-X2 in smartphones
(3.3GHz, 1MB L2, 8MB L3).[5]
  • 11% IPC uplift over theARM Cortex-X2, when based on the same process,
clock speed, and cache setup (also known as ISO-process).[2]

Usage

[edit]

Architecture comparison

[edit]
"Prime" core
uArchCortex-A78Cortex-X1Cortex-X2Cortex-X3Cortex-X4Cortex-X925
Code nameHerculesHeraMatterhorn-ELPMakalu-ELPHunter-ELPBlackhawk
ArchitectureARMv8.2ARMv9ARMv9.2
Peak clock speed~3.0 GHz~3.3 GHz~3.4 GHz~3.8 GHz
Decode width45610[8]
Dispatch6/cycle8/cycle10/cycle
Max in-flight2x 1602x 2242x 2882x 3202x 3842x 768
L0 (Mops entries)1536[9]3072[9]15360[8]
L1-I + L1-D32+32 KiB64+64 KiB
L2128–512 KiB0.25–1 MiB0.5–2 MiB2–3 MiB
L30–8 MiB[10]0–16 MiB0–32 MiB

See also

[edit]

References

[edit]
  1. ^"Next-gen Armv9 CPUs unleash compute performance - Arm Community".arm.com. 2022-06-28. Retrieved2023-09-16.
  2. ^ab"Arm Cortex-X3 and Cortex-A715: Next-gen CPUs redefined".Android Authority. 2022-06-28. Retrieved2022-10-08.
  3. ^"Second generation Arm Total Compute Solutions - Arm Community".arm.com. 2022-06-28. Retrieved2023-09-16.
  4. ^"Arm Unveils Next-Gen Flagship Core: Cortex-X3".WikiChip Fuse. 2022-06-28. Retrieved2023-09-16.
  5. ^"ARM unveils Cortex-X3 (+25% peak performance) and Cortex-A715 (+20% efficiency)".GSMArena. Retrieved2022-10-08.
  6. ^"MediaTek Launches Flagship Dimensity 9200 Chipset for Incredible Performance and Unmatched Power Savings".MediaTek. 2022-11-08.
  7. ^"Snapdragon 8 Gen 2 Defines a New Standard for Premium Smartphones".qualcomm.com. 2022-11-15. Retrieved2022-11-15.
  8. ^ab"Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive".Android Authority. 2023-05-29. Retrieved2023-06-01.
  9. ^ab"Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence".anandtech.com. Archived fromthe original on May 26, 2020. Retrieved2023-06-01.
  10. ^Schor, David (2020-05-26)."Arm Cortex-X1: The First From The Cortex-X Custom Program".WikiChip Fuse. Retrieved2023-05-30.
Application ARM-based chips
Application
processors
(32-bit)
ARMv7-A
Cortex-A5
Cortex-A7
Cortex-A8
Cortex-A9
Cortex-A15
Cortex-A17
Others
ARMv7-A
compatible
ARMv8-A
Others
Application
processors
(64-bit)
ARMv8-A
Cortex-A35
Cortex-A53
Cortex-A57
Cortex-A72
Cortex-A73
Others
ARMv8-A
compatible
ARMv8.1-A
ARMv8.1-A
compatible
ARMv8.2-A
Cortex-A55
Cortex-A75
Cortex-A76
Cortex-A77
Cortex-A78
Cortex-X1
Neoverse N1
Others
  • Cortex-A65, Cortex-A65AE, Cortex-A76AE, Cortex-A78C, Cortex-X1C,Neoverse E1
ARMv8.2-A
compatible
ARMv8.3-A
ARMv8.3-A
compatible
ARMv8.4-A
Neoverse V1
ARMv8.4-A
compatible
ARMv8.5-A
ARMv8.5-A
compatible
ARMv8.6-A
ARMv8.6-A
compatible
ARMv8.7-A
ARMv8.7-A
compatible
ARMv9.0-A
Cortex-A510
Cortex-A710
Cortex-A715
Cortex-X2
Cortex-X3
Neoverse N2
Neoverse V2
ARMv9.2-A
Cortex-A520
Cortex-A720
Cortex-A725
Cortex-X4
Cortex-X925
Neoverse N3
-
Neoverse V3
ARMv9.2-A
compatible
ARMv9.3-A
Lumex C1-Ultra
Lumex C1-Premium
Lumex C1-Pro
Lumex C1-Nano
TBD
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