ARM Neoverse

The ARM Neoverse is a group of 64-bit ARM processor cores licensed by Arm Holdings. The cores are intended for datacenter, edge computing, and high-performance computing use. The group consists of ARM Neoverse N1, ARM Neoverse E1, ARM Neoverse V1, and ARM Neoverse N2 as of 2022.[1][2]

Neoverse N-Series

The Neoverse N-Series processors are intended for core datacenter usage.

Neoverse N1

On February 20, 2019, Arm announced the Neoverse N1 microarchitecture (code named Ares) derived from the Cortex-A76 redesigned for infrastructure/server applications. The reference design supports up to 64 or 128 Neoverse N1 cores.[3][4]

Notable changes from the Cortex-A76:

  • Coherent I-cache and D-cache with 4-cycle LD-use
  • L2 cache: 512–1024 kB per core
  • Mesh interconnect instead of 1–4 cores per cluster

Neoverse N1 implements the ARMv8.2-A instruction set.

The Ampere Altra (2-socket 80-core) and AWS Graviton2 (64-core) CPU platforms are based on Neoverse N1 cores and were released in 2020.[5]

Neoverse N2

The Neoverse N2 (code named Perseus) is derived from the Cortex-A710 and implements the ARMv9.0-A instruction set.[6]

Neoverse N-Next

Neoverse N-Next, presumably N3, was teased by Arm alongside the V2 and E2 announcements.[7] It is targeted for systems including DDR5, PCIe gen6, and CXL 3.0.

Neoverse E-Series

The Neoverse E-Series processors are intended for edge computing. They are designed for increased data throughput at decreased power consumption.

Neoverse E1

Neoverse E1 is derived from the Cortex-A65AE[8] and implements the ARMv8.2-A instruction set. It support SMT.

Neoverse E2

Neoverse E2 is derived from the Cortex-A510[9] and implements the ARMv9-A instruction set.

Neoverse E-Next

Neoverse E-Next, presumably E3, was teased by Arm alongside the V2 and E2 announcements.[10] It is targeted for systems including DDR5, PCIe gen6, and CXL 3.0.

Neoverse V-Series

The Neoverse V-Series processors are intended for very high performance computing.

Neoverse V1

Neoverse V1 (code named Zeus[11]) is derived from the Cortex-X1[12] and implements the ARMv8.4-A instruction set. It is said to be initially realized with a 7 nm process from TSMC.

According to The Next Platform, the AWS Graviton3 is based on the Neoverse V1.[13]

Neoverse V2

Neoverse V2 (code named Demeter) was officially announced by Arm on September 14, 2022.[14]

Neoverse V-Next

Neoverse V-Next, presumably V3, (code named Poseidon) was teased by Arm alongside the V2 and E2 announcements.[15] It is targeted for systems including DDR5, PCIe gen6, and CXL 3.0.

Successors

With code name Poseidon a successor for Neoverse V1 (aka Zeus)[16] was first publicly mentioned on TechCon 2018. Actual introduction (used by third party chip designers in their products) was given in form of a rough target date of 2021. Its initial realization process is said to be 5 nm by TSMC.

References
  1. "Arm Neoverse".
  2. "Arm Puts Some Muscle Into Future Neoverse Server CPU Designs". 27 April 2021.
  3. Frumusanu, Andrei. "Arm Announces Neoverse N1 & E1 Platforms & CPUs: Enabling A Huge Jump In Infrastructure Performance". www.anandtech.com. Retrieved 2020-06-17.
  4. "Arm Launches New Neoverse N1 and E1 Server Cores". WikiChip Fuse. 2019-02-20. Retrieved 2020-06-17.
  5. Frumusanu, Andrei. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility". www.anandtech.com. Retrieved 2022-05-05.
  6. Frumusanu, Andrei. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility". www.anandtech.com. Retrieved 2022-05-05.
  7. "Arm Announces Neoverse V2 and E2: The Next Generation of Arm Server CPU Cores".
  8. "Arm Announces Neoverse N1 & E1 Platforms & CPUs: Enabling a Huge Jump in Infrastructure Performance".
  9. "Arm Announces Neoverse V2 and E2: The Next Generation of Arm Server CPU Cores".
  10. "Arm Announces Neoverse V2 and E2: The Next Generation of Arm Server CPU Cores".
  11. "Neoverse V1 - Microarchitectures - ARM - WikiChip".
  12. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility".
  13. "Inside Amazon's Graviton3 Arm Server Processor". 4 January 2022.
  14. "Redefining the global computing infrastructure with next-generation Arm Neoverse platforms".
  15. "Arm Announces Neoverse V2 and E2: The Next Generation of Arm Server CPU Cores".
  16. "Poseidon - Microarchitectures - ARM - WikiChip".
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