ARM Cortex-X2

ARM Cortex-X2
General information
Launched2021
Designed byArm
Performance
Max. CPU clock rate2.85 GHz to 3.0 GHz
Address width40-bit
Physical specifications
Cores
  • 1–12 (per cluster)
Cache
L1 cache128 KiB
(64 KiB I-cache with parity,
64 KiB D-cache) per core
L2 cache256–1024 KiB per core
L3 cache512 KiB – 16 MiB (optional)
Architecture and classification
MicroarchitectureARM Cortex-X2
Instruction setARMv9.0-A
Products, models, variants
Product code name
  • Matterhorn ELP
Variant
History
PredecessorARM Cortex-X1
SuccessorARM Cortex-X3

The ARM Cortex-X2 is a CPU implementing the ARMv9-A 64-bit instruction set designed by ARM Holdings' Austin design centre as part of ARM's Cortex-X Custom (CXC) program.

It forms part of Arm's Total Compute Solutions 2021 (TCS21) along with Arm's Cortex-A710, Cortex-A510, Mali-G710 and CoreLink CI-700/NI-700.

Architecture changes in comparison with ARM Cortex-X1

The processor implements the following changes:

Performance claims:

Architecture comparison

"Prime" core
uArch Cortex-A78 Cortex-X1 Cortex-X2 Cortex-X3 Cortex-X4 Cortex-X925
Code name Hercules Hera Matterhorn-ELP Makalu-ELP Hunter-ELP Blackhawk
Architecture ARMv8.2 ARMv9 ARMv9.2
Peak clock speed ~3.0 GHz ~3.3 GHz ~3.4 GHz ~3.8 GHz
Decode width 4 5 6 10
Dispatch 6/cycle 8/cycle 10/cycle
Max in-flight 2x 160 2x 224 2x 288 2x 320 2x 384 2x 768
L0 (Mops entries) 1536 3072 1536 0
L1-I + L1-D 32+32 KiB 64+64 KiB
L2 128–512 KiB 0.25–1 MiB 0.5–2 MiB 2–3 MiB
L3 0–8 MiB 0–16 MiB 0–32 MiB

Usage

See also

References

  1. ↑ "Cortex-X Custom CPU program". Arm. Retrieved 2021-12-02.
  2. ↑ "Arm Total Compute solutions powering decade of compute - Arm Community". Arm. 2021-05-25. Retrieved 2023-09-16.
  3. ↑ "Arm Launches Its New Flagship Performance Armv9 Core: Cortex-X2". WikiChip Fuse. 2021-05-25. Archived from the original on 2022-04-22. Retrieved 2021-12-03.
  4. ↑ "Documentation – Arm Developer". arm.com. Archived from the original on 2021-12-03. Retrieved 2021-12-03.
  5. ↑ "Arm Announces Mobile Armv9 CPU Microarchitectures: Cortex-X2, Cortex-A710 & Cortex-A510". anandtech.com. Archived from the original on May 25, 2021. Retrieved 2021-12-03.
  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 "Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence". anandtech.com. Archived from the original on May 26, 2020. Retrieved 2023-06-01.
  8. ↑ Schor, David (2020-05-26). "Arm Cortex-X1: The First From The Cortex-X Custom Program". WikiChip Fuse. Archived from the original on 2022-04-03. Retrieved 2023-05-30.
  9. ↑ "Snapdragon 7+ Gen 2 Mobile Platform". Qualcomm. Retrieved 17 March 2023. [dead link]
  10. ↑ "Qualcomm Snapdragon 8 Gen 1 Mobile Platform | Latest 5G Snapdragon Processor". qualcomm.com. 17 November 2021. Retrieved 2021-12-02.
  11. ↑ "The Snapdragon 8 Gen 1 Performance Preview: Sizing Up Cortex-X2". AnandTech. December 14, 2021. Archived from the original on December 22, 2021. Retrieved March 3, 2022.
  12. ↑ "Exynos 2200 | Processor".