ARM Cortex-X2
| General information | |
|---|---|
| Launched | 2021 |
| Designed by | ARM Ltd. |
| Performance | |
| Max. CPU clock rate | 2.85 GHz[1] to 3.00 GHz[1] |
| Cache | |
| L1 cache | 128 KiB (64 KiB I-cache with parity, 64 KiB D-cache) per core |
| L2 cache | 512–1024 KiB per core |
| L3 cache | 512 KiB – 8 MiB (optional) |
| Architecture and classification | |
| Microarchitecture | ARM Cortex-X2 |
| Instruction set | ARMv9.0-A |
| Products, models, variants | |
| Product code name |
|
| Variant | |
| History | |
| Predecessor | ARM Cortex-X1 |
| Successor | ARM Cortex-X3 |
The ARM Cortex-X2 is a central processing unit 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.[2] 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.[3]
Architecture changes in comparison with ARM Cortex-X1
[edit]The processor implements the following changes:[4][5][6]
- 10 cycle pipeline down from 11, created by reducing the dispatch stage from 2 cycles to 1
- Reorder buffer (ROB) increased by 30% from 224 entries to 288
- dTLB increased by 20% from 40 entries to 48
- SVE2 SIMD support
- Bfloat16 data type support
- Support for Aarch32 removed
- DSU-110
- Up to 12 cores (up from 8 cores)
- Up to 16M L3 cache (up from 8 MB)
- CoreLink CI-700/NI-700
- Up to 32MB SLC
- ARMv9.0
Performance claims:
- Comparing the Cortex-X2 to the Cortex-X1 with the same process, clock speed, and 4MB of L3 cache (also known as ISO-process):
- 16% greater integer performance / IPC
- 100% greater ML performance
- 30% peak performance improvement over the Cortex-X1 in smartphones (3.3 GHz, 1MB L2, 8MB L3)
- 40% faster than an Intel Core i5-1135G7 at 15W (3.5 GHz, 1MB L2, 16MB L3)
Usage
[edit]- MediaTek Dimensity 9000/9000+[7]
- Qualcomm Snapdragon 7+ Gen 2[8]
- Qualcomm Snapdragon 8/8+ Gen 1[9]
- Samsung Exynos 2200[10]
See also
[edit]- ARM Cortex-A710, related high performance microarchitecture
- Comparison of ARMv8-A cores, ARMv8 family
References
[edit]- ^ a b Dr. Ian Cutress (December 14, 2021). "The Snapdragon 8 Gen 1 Performance Preview: Sizing Up Cortex-X2". anandtech.com. AnandTech. Retrieved March 3, 2022.
- ^ Ltd, Arm. "Cortex-X Custom CPU program". Arm | The Architecture for the Digital World. Retrieved 2021-12-02.
- ^ "Arm Total Compute solutions powering decade of compute - Architectures and Processors blog - Arm Community blogs - Arm Community". community.arm.com. 2021-05-25. Retrieved 2023-09-16.
- ^ "Arm Launches Its New Flagship Performance Armv9 Core: Cortex-X2". WikiChip Fuse. 2021-05-25. Retrieved 2021-12-03.
- ^ Frumusanu, Andrei. "Arm Announces Mobile Armv9 CPU Microarchitectures: Cortex-X2, Cortex-A710 & Cortex-A510". www.anandtech.com. Retrieved 2021-12-03.
- ^ "Documentation – Arm Developer". developer.arm.com. Archived from the original on 2021-12-03. Retrieved 2021-12-03.
- ^ "Summit Dimensity9000| Latest 5G Snapdragon Processor | Qualcomm". i.mediatek.com. 17 November 2021. Retrieved 2021-12-02.
- ^ "Snapdragon 7+ Gen 2 Mobile Platform". Qualcomm. Retrieved 17 March 2023.
- ^ "Qualcomm Snapdragon 8 Gen 1 Mobile Platform | Latest 5G Snapdragon Processor | Qualcomm". www.qualcomm.com. 17 November 2021. Retrieved 2021-12-02.
- ^ "Exynos 2200 | Processor".
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