| General information | |
|---|---|
| Launched | 2023 |
| Designed by | ARM Ltd. |
| Cache | |
| L1 cache | 64/128 KiB (32/64 KiB I-cache with parity, 32/64 KiB D-cache) per core |
| L2 cache | 0–512 KiB per complex |
| L3 cache | 256 KiB – 32 MiB (optional) |
| Architecture and classification | |
| Microarchitecture | ARM Cortex-A520 |
| Instruction set | ARMv9.2-A |
| Products, models, variants | |
| Product code name |
|
| History | |
| Predecessor | ARM Cortex-A510 |
| Successor | ARM Cortex-A530 |
The ARM Cortex-A520 is a "little" CPU core model from Arm unveiled in TCS23 (total compute solution) [1][2][3] it serves as a successor to the CPU core ARM Cortex-A510. The Cortex-A500 CPU cores series generally focus on high efficiency, the CPU core can be paired with the other CPU cores in its family like ARM Cortex-A720 or/and Cortex-X4 in a CPU cluster.[4]
Improvements
[edit]- 8% peak performance improvement over the Cortex-A510[5]
- Support only 64-bit applications
- Up to 512 KiB of private L2 cache (From 256 KiB)
- Add QARMA3 Pointer Authentication (PAC) algorithm support
- Update to ARMv9.2[6]
Architecture comparison
[edit]| uArch | Cortex-A53 | Cortex-A55 | Cortex-A510 | Cortex-A520 |
|---|---|---|---|---|
| Peak clock speed | 2.3 GHz | 2.1 GHz | 2.0 GHz | 2.0 GHz |
| Decode Width | 2 | 3 | 3 (2 ALU) | |
| Dispatch | 8[7] | |||
| Max In-flight | None (In-order) | |||
| branch predictor
history (entries) |
3072[8] | |||
| L0 (Mops entries) | None | |||
| L1-I + L1-D | 8/64+8/64 KiB | 16/64+16/64 KiB | 32/64+32/64 KiB | |
| L2 | 0–256 KB | 0–512 KB | ||
| L3 | ? | 0–4 MiB | 0–16 MiB | 0–32 MiB |
| AArch | 32-bit and 64-bit | 64-bit | ||
| Architecture | ARMv8.0-A | ARMv8.2-A | ARMv9.0-A | ARMv9.2-A |
See also
[edit]- ARM Cortex-X4, related high performance microarchitecture
- ARM Cortex-A720, related efficient sustained performance microarchitecture
- Comparison of ARMv8-A cores, ARMv8 family
References
[edit]- ^ Bonshor, Gavin. "Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family". www.anandtech.com. Retrieved 2023-05-30.
- ^ "Arm Launches Next-Gen Efficiency Core; Cortex-A520". WikiChip Fuse. 2023-05-28. Retrieved 2023-09-16.
- ^ "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-05.
- ^ "Cortex-A520". developer.arm.com. Retrieved 2023-09-16.
- ^ Bonshor, Gavin. "Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family". www.anandtech.com. Retrieved 2023-06-05.
- ^ Ltd, Arm. "Cortex-A520". Arm | The Architecture for the Digital World. Retrieved 2023-06-05.
- ^ "A closer look at ARM's new Cortex-A75 and Cortex-A55 CPUs". Android Authority. 2017-05-31. Retrieved 2023-06-05.
- ^ "ARM's Cortex A53: Tiny But Important". Chips and Cheese. 2023-05-28. Retrieved 2023-06-14.
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