| General information | |
|---|---|
| Launched | 2023 |
| Designed by | ARM Ltd. |
| Performance | |
| Max. CPU clock rate | 1.8 GHz to 2.27 GHz |
| 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 C1-Nano |
The ARM Cortex-A520 is a CPU microarchitecture designed by Arm Holdings and licensed as a semiconductor intellectual property core. It implements the 64-bit ARMv9 instruction set and supports heterogeneous computing via a big.LITTLE configuration. The design succeeds the Cortex-A510 in its role as a low performance, power efficient core, and is announced in 2023 together with the Cortex-A720 and the X4.123
Technical overview
The A520 is an in-order CPU core intended for low-performance, low-power workloads.
- ARMv9.2 instruction set4
- Claimed performance improvement of up to 8% over the Cortex-A5105
- Support only Aarch64 applications
- Optional L2 cache of up to 512KiB per core
- Supports QARMA3 pointer authentication codes (PAC)
Architecture comparison
- "LITTLE" core
| uArch | Cortex-A53 | Cortex-A55 | Cortex-A510 | Cortex-A520 |
|---|---|---|---|---|
| Codename | Apollo | Ananke | Klein | Hayes |
| Peak clock speed | ~2 GHz | |||
| Architecture | ARMv8.0-A | ARMv8.2-A | ARMv9.0-A | ARMv9.2-A |
| AArch | 32-bit and 64-bit | 64-bit | ||
| Branch predictor history (entries) |
30726 | - | ||
| Out-of-order | No | |||
| L0 Cache | No | |||
| L1-I + L1-D | 8/64+8/64 KiB | 16/64+16/64 KiB | 32/64+32/64 KiB | |
| L2 | 0–256 KiB | 0–512 KiB | ||
| L3 | None | 0–4 MiB | 0–16 MiB | 0–32 MiB |
| Decode Width | 2 | 3 | 3 (2 ALU) | |
| Dispatch | 87 | |||
See also
See also
- ARM Cortex-X4, related high performance microarchitecture
- ARM Cortex-A720, related efficient sustained performance microarchitecture
- Comparison of ARMv8-A cores, ARMv8 family
References
References
- "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-05.
- "Arm Launches Next-Gen Efficiency Core; Cortex-A520". WikiChip Fuse. 2023-05-28. Retrieved 2023-09-16.
- "Cortex-A520". developer.arm.com. Retrieved 2023-09-16.
- Ltd, Arm. "Cortex-A520". Arm | The Architecture for the Digital World. Retrieved 2023-06-05.
- Bonshor, Gavin. "Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the ARMv9.2 Family". www.anandtech.com. Archived from the original on May 29, 2023. Retrieved 2023-05-30.
- "ARM's Cortex A53: Tiny But Important". Chips and Cheese. 2023-05-28. Retrieved 2023-06-14.
- "A closer look at ARM's new Cortex-A75 and Cortex-A55 CPUs". Android Authority. 2017-05-31. Retrieved 2023-06-05.