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ARM Cortex-A520
General information
Launched2023
Designed byARM Ltd.
Performance
Max. CPU clock rate1.8 GHz  to 2.27 GHz 
Cache
L1 cache64/128 KiB
(32/64 KiB I-cache with parity,
32/64 KiB D-cache) per core
L2 cache0–512 KiB per complex
L3 cache256 KiB – 32 MiB (optional)
Architecture and classification
MicroarchitectureARM Cortex-A520
Instruction setARMv9.2-A
Products, models, variants
Product code name
  • Hayes
History
PredecessorARM Cortex-A510
SuccessorARM 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.[1][2][3]

Technical overview

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The A520 is an in-order CPU core intended for low-performance, low-power workloads.

Architecture comparison

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"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) 		3072[6] -
Out-of-order

execution

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 8[7]

See also

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References

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  1. ^ "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-05.
  2. ^ "Arm Launches Next-Gen Efficiency Core; Cortex-A520". WikiChip Fuse. 2023-05-28. Retrieved 2023-09-16.
  3. ^ "Cortex-A520". developer.arm.com. Retrieved 2023-09-16.
  4. ^ Ltd, Arm. "Cortex-A520". Arm | The Architecture for the Digital World. Retrieved 2023-06-05.
  5. ^ 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.
  6. ^ "ARM's Cortex A53: Tiny But Important". Chips and Cheese. 2023-05-28. Retrieved 2023-06-14.
  7. ^ "A closer look at ARM's new Cortex-A75 and Cortex-A55 CPUs". Android Authority. 2017-05-31. Retrieved 2023-06-05.


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