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ARM Cortex-A520

ARM Cortex-A520
產品化2023年
設計團隊ARM Ltd.
微架構ARM Cortex-A520
指令集架構ARMv9.2-A
一級快取每个核心 64/128 KiB (具有奇偶校验的32/64 KiB I-cache,32/64 KiB D-cache)
二級快取每个复合体(complex)0–512 KiB
三級快取256 KiB – 32 MiB (可选)
上代產品ARM Cortex-A510
繼任產品ARM Cortex-A530

ARM Cortex-A520是Arm在TCS23(全面计算解决方案)[1][2][3]中公布的“LITTLE”CPU核心型号,作为CPU核心ARM Cortex-A510的继任者。Cortex-A500系列CPU核心系列通常专注于高能效,CPU核心可以与其家族中的其他CPU核心如ARM Cortex-A720或者和Cortex-X4配对使用,形成一个CPU集群(簇)。[4]

改进

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  • Cortex-A510相比,峰值性能提高了8%[5]
  • 仅支持64位元应用程序
  • 最多可达512 KiB的私有L2缓存
  • 增加QARMA3指针认证(PAC)算法支持
  • 更新至ARMv9.2[6]

微架构对比

[编辑]
微架构 Cortex-A53 Cortex-A55 Cortex-A510 Cortex-A520
峰值时钟频率 2.3 GHz 2.1 GHz 2.0 GHz 2.0 GHz
解码宽度 2 3 3 (2 ALU)
派遣 8[7]
最大在途指令数 无(顺序执行)
分支预测器历史记录(条目) 3072[8]
L0 (Mops条目)
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和64-bit 64-bit
指令集架构 ARMv8.0-A ARMv8.2-A ARMv9.0-A ARMv9.2-A

另见

[编辑]

参考资料

[编辑]
  1. ^ Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive. Android Authority. 2023-05-29 [2023-06-05] (英语). 
  2. ^ Bonshor, Gavin. Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family. www.anandtech.com. [2023-05-30]. 
  3. ^ Arm Launches Next-Gen Efficiency Core; Cortex-A520. WikiChip Fuse. 2023-05-28 [2023-09-16] (美国英语). 
  4. ^ Cortex-A520. developer.arm.com. [2023-09-16]. 
  5. ^ Bonshor, Gavin. Arm Unveils 2023 Mobile CPU Core Designs: Cortex-X4, A720, and A520 - the Armv9.2 Family. www.anandtech.com. [2023-06-05]. 
  6. ^ Ltd, Arm. Cortex-A520. Arm | The Architecture for the Digital World. [2023-06-05] (英语). 
  7. ^ A closer look at ARM’s new Cortex-A75 and Cortex-A55 CPUs. Android Authority. 2017-05-31 [2023-06-05] (英语). 
  8. ^ ARM’s Cortex A53: Tiny But Important. Chips and Cheese. 2023-05-28 [2023-06-14] (美国英语). 


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ARM Cortex-A520
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