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ARM Cortex-A715
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The ARM Cortex-A715 is the second generation ARMv9 "big" Cortex CPU.cite-ref-0-1-0[1] Compared to its predecessor the Cortex-A710 the Cortex-A715 CPU is noted for having a 20% increase in power efficiency, and 5% improvement in performance.cite-ref-0-1-1[1] The Cortex-A715 shows comparable performance to the previous generation Cortex-X1 CPU.cite-ref-1-2-0[2]cite-ref-3[3]

This generation of chips starting with the A715 drops native 32-bit support.cite-ref-4[4] It forms part of Arm's Total Compute Solutions 2022 (TCS22) along with Arm's Cortex-X3, Cortex-A510, Arm Immortalis-G715 and CoreLink CI-700/NI-700.cite-ref-5[5]

Contents

Usage

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Architecture changes in comparison with ARM Cortex-A710

The processor implements the following changes:cite-ref-6[6]

• Decode width: 5 (increased from 4)
• Removed micro-op (MOP) cache (previously 1.5k entries)

Usage

MediaTekDimensity 8300Dimensity 9200cite-ref-7[7]
QualcommSnapdragon 8 Gen 2cite-ref-8[8]
GoogleTensor G3cite-ref-9[9]

Architecture comparison

"big" core

| μArch | Cortex-A77 | Cortex-A78 | Cortex-A710 | | Cortex-A720 | Cortex-A725 |
|---|---|---|---|---|---|---|
| Codename | Deimos | Hercules | Matterhorn | Makalu | Hunter | Chaberton |
| Peak clock speed | 2.6 GHz | ~3.0 GHz | ~3.0 GHz | ~3.0 GHz | ~3.0 GHz | - |
| Architecture | ARMv8.2-A | ARMv8.2-A | ARMv9.0-A | ARMv9.0-A | ARMv9.2-A | ARMv9.2-A |
| AArch | - | 32-bit and 64-bit | 32-bit and 64-bit | 64-bit | 64-bit | 64-bit |
| Max In-flight | 160 | 160 | ? | 192+ [ 10 ] | ? | - |
| L0 (Mops entries) | - | 1536 [ 11 ] | 1536 [ 11 ] | 0 [ 12 ] | 0 [ 12 ] | - |
| L1 (I + D) (KiB) | 64 + 64 KiB | 32/64 + 32/64 KiB | 32/64 + 32/64 KiB | 32/64 + 32/64 KiB | 32/64 + 32/64 KiB | 64 + 64 KiB |
| L2 Cache (KiB) | 256–512 KiB | 128–512 KiB | 128–512 KiB | 128–512 KiB | 128–512 KiB | 0.25–1 MiB [ 13 ] |
| L3 Cache (MiB) | 0–4 MiB | 0–8 MiB | 0–16 MiB | 0–16 MiB | 0–32 MiB [ 14 ] | 0–32 MiB [ 14 ] |
| Decode width | 4-way | 4-way | 4-way | 5-way | 5-way | 5-way |
| Dispatch | 6 Mops/cycle | 6 Mops/cycle | 5 Mops/cycle [ 15 ] | 5 Mops/cycle [ 15 ] | ? | - |

See also

ARM Cortex-X3, related high performance microarchitecture
Comparison of ARMv8-A cores, ARMv8 family

References

cite-note-0-11. citerefltdLtd, Arm. "Cortex-A715". Arm | The Architecture for the Digital World. Retrieved 2022-07-21.
cite-note-1-22. "Next-gen Armv9 CPUs unleash compute performance - Announcements - Arm Community blogs - Arm Community". community.arm.com. Retrieved 2022-07-21.
cite-note-33. "Cortex-A715". developer.arm.com. Retrieved 2023-09-16.
cite-note-44. citerefamadeo2022Amadeo, Ron (2022-06-29). "Arm X3 CPU gets a 25% speed boost, should still be slower than a 2021 iPhone". Ars Technica. Retrieved 2022-10-18.
cite-note-55. "Second generation Arm Total Compute Solutions - Announcements - Arm Community blogs - Arm Community". community.arm.com. 2022-06-28. Retrieved 2023-09-16.
cite-note-66. "Arm Introduces The Cortex-A715". WikiChip Fuse. 2022-06-28. Retrieved 2023-09-16.
cite-note-77. "MediaTek Launches Flagship Dimensity 9200 Chipset for Incredible Performance and Unmatched Power Savings". MediaTek (Press release). 2022-11-08.
cite-note-88. "Snapdragon 8 Gen 2 Defines a New Standard for Premium Smartphones". www.qualcomm.com. Hawaii: Qualcomm. 2022-11-15. Retrieved 2022-11-15.
cite-note-99. "Google Tensor G3: Everything you need to know about the Pixel 8 processor". Android Authority. 2024-05-26. Retrieved 2024-06-04.
cite-note-101. "Arm Introduces The Cortex-A715". WikiChip Fuse. 2022-06-28. Retrieved 2023-09-16.
cite-note-112. "Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence". www.anandtech.com. Archived from the original on May 26, 2020. Retrieved 2023-06-06.
cite-note-123. "Documentation – Arm Developer". developer.arm.com. Retrieved 2023-06-06.
cite-note-134. "Arm launches next gen big core Cortex-A725". WikiChip Fuse. 2024-05-29.
cite-note-145. "Arm introduces a new big core Cortex-A720". WikiChip Fuse. 2023-05-28.
cite-note-156. "Arm Cortex-X2, A710, and A510 deep dive: New Armv9 CPU designs explained". Android Authority. 2021-05-25. Retrieved 2023-06-06.