ARM Cortex-X925

Last updated
ARM Cortex-X925
General information
Launched2024
Designed by ARM Ltd.
Performance
Address width40-bit
Cache
L1 cache 128 KiB (64 KiB I-cache with parity, 64 KiB D-cache) per core
L2 cache2048–3072 KiB per core
L3 cache512 KiB – 32 MiB(optional)
Architecture and classification
Microarchitecture ARM Cortex-X925
Instruction set ARMv9.2-A
Physical specifications
Cores
  • 1–14 per cluster
Products, models, variants
Product code name
  • Blackhawk
Variant
History
Predecessor ARM Cortex-X4

The ARM Cortex-X925, codenamed "Blackhawk", is a high-performance CPU core designed by Arm and introduced in 2024. It is part of the second-generation ARMv9.2 architecture and is built on a 3 nm process node. The Cortex-X925 [1] is designed to excel in single-threaded instruction per clock (IPC) performance, making it ideal for high-performance mobile computing.

Contents

Key features

The Cortex-X925 is designed to be used in both homogeneous and heterogeneous DynamIQ™ clusters, providing flexibility in various system configurations. [3]

Released in 2024 as part of Arm's "total compute solution." It serves as the successor of ARM Cortex-X4. X-series CPU cores generally focus on high performance, and can be grouped with other ARM cores, such as ARM Cortex-A725 and/or ARM Cortex-A520 in a System-on-Chip (SoC).

Architecture comparison

uArch Cortex-A78 Cortex-X1 Cortex-X2 Cortex-X3 Cortex-X4 Cortex-X925
Code nameHerculesHeraMatterhorn-ELPMakalu-ELPHunter-ELPBlackhawk
Architecture ARMv8.2 ARMv9 ARMv9.2
Peak clock speed~3.0 GHz~3.25 GHz~3.4 GHz~3.8 GHz
Decode Width45610 [4] [5]
Dispatch6/cycle8/cycle10/cycle
Max In-flight2x1602x2242x2882x3202x3842x768
L0 (Mops entries)1536 [6] 3,072 [6] 1536None [4]
L1-I + L1-D32+32 KiB [7] 64+64 KiB
L2128–512 KiB256KiB – 1 MiB512 KiB – 2 MiB2 MiB – 3 MiB
L30–8 MiB0–16 MiB0–32 MiB

Usage

References

  1. "Arm Launches Next-Gen Flagship Cortex-X925". 29 May 2024.
  2. 1 2 3 4 "Arm Unveils 2024 CPU Core Designs, Cortex X925, A725 and A520: Arm v9.2 Redefined for 3nm".
  3. 1 2 3 4 "Documentation – Arm Developer".
  4. 1 2 "Arm Cortex-X4, A720, and A520: 2024 smartphone CPUs deep dive". Android Authority. 2023-05-29. Retrieved 2023-06-01.
  5. "Deep dive into Arm's new Cortex-X925 and Immortalis-G925 for mobile". 29 May 2024.
  6. 1 2 Frumusanu, Andrei. "Arm's New Cortex-A78 and Cortex-X1 Microarchitectures: An Efficiency and Performance Divergence". www.anandtech.com. Retrieved 2023-06-01.
  7. Schor, David (2020-05-26). "Arm Cortex-X1: The First From The Cortex-X Custom Program". WikiChip Fuse. Retrieved 2023-05-30.
  8. "MediaTek Dimensity 9400 | Flagship 5G Chipset | Smartphones".
  9. "MediaTek Dimensity 9400+".
  10. "Exynos 2500 | Mobile Processor".