ARM Cortex-X3

The ARM Cortex-X3 is the third generation X-series high-performance CPU core from Arm.[1][2][3] It forms part of Arm's Total Compute Solutions 2022 (TCS22) along with Arm's Cortex-A715, Cortex-A510, Immortalis-G715 and CoreLink CI-700/NI-700.[4]

ARM Cortex-X3
General information
Launched2022
Designed byArm
Performance
Max. CPU clock rateto 3.3 GHz in phones and 3.6 GHz in laptops 
Address width40-bit
Cache
L1 cache128 KiB (64 KiB I-cache with parity, 64 KiB D-cache) per core
L2 cache512–1024 KiB per core
L3 cache512 KiB – 16 MiB (optional)
Architecture and classification
Instruction setARMv9.0-A
Physical specifications
Cores
  • 1–8 per cluster
Products, models, variants
Product code name(s)
  • Makalu ELP
Variant(s)
History
Predecessor(s)ARM Cortex-X2
Successor(s)ARM Cortex-X4


Architecture changes in comparison with ARM Cortex-X2

The processor implements the following changes:[1][5][6]

  • 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 the Cortex-X2 in smartphones (3.3GHz, 1MB L2, 8MB L3).[1][7]
  • 11% IPC uplift over the Cortex-X2, when based on the same process, clock speed, and cache setup (also known as ISO-process).[3]
  • 34% faster than an Intel Core i7-1260P (3.6GHz, 1MB L2, 16MB L3)[8]

Usage

See also

References
  1. "Next-gen Armv9 CPUs unleash compute performance - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2022-06-28. Retrieved 2023-09-16.
  2. "Second generation Arm Total Compute Solutions - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2022-06-28. Retrieved 2023-09-16.
  3. "Arm Cortex-X3 and Cortex-A715: Next-gen CPUs redefined". Android Authority. 2022-06-28. Retrieved 2022-10-08.
  4. "Second generation Arm Total Compute Solutions - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2022-06-28. Retrieved 2023-09-16.
  5. "Arm Unveils Next-Gen Flagship Core: Cortex-X3". WikiChip Fuse. 2022-06-28. Retrieved 2023-09-16.
  6. "Arm Cortex-X3 and Cortex-A715: Next-gen CPUs redefined". Android Authority. 2023-04-18. Retrieved 2023-09-16.
  7. "ARM unveils Cortex-X3 (+25% peak performance) and Cortex-A715 (+20% efficiency)". GSMArena.com. Retrieved 2022-10-08.
  8. "Arm announces its next-gen CPU cores: Cortex-X3, Cortex-A715, and revamped Cortex-A510". TechSpot. 2022-06-29. Retrieved 2023-09-16.
  9. "MediaTek Launches Flagship Dimensity 9200 Chipset for Incredible Performance and Unmatched Power Savings". MediaTek (Press release). 2022-11-08.
  10. "Snapdragon 8 Gen 2 Defines a New Standard for Premium Smartphones". www.qualcomm.com. Hawaii: Qualcomm. 2022-11-15. Retrieved 2022-11-15.
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