Engineering:ARM Neoverse

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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 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[7] and implements the ARMv8.2-A instruction set. It support SMT.

Neoverse V-Series

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

Neoverse V1

Neoverse V1 (code named Zeus[8]) is derived from the Cortex-X1[9] 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.[10]

Neoverse V2

Neoverse V2 (code named Demeter} was officially announced by Arm on September 14, 2022.[11]

Successors

With code name Poseidon a successor for Neoverse V1 (aka Zeus)[12] 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 TMSC.

References

  1. "Arm Neoverse". https://www.arm.com/products/silicon-ip-cpu/neoverse. 
  2. "Arm Puts Some Muscle Into Future Neoverse Server CPU Designs". 27 April 2021. https://www.nextplatform.com/2021/04/27/arm-puts-some-muscle-into-future-neoverse-server-cpu-designs/. 
  3. Frumusanu, Andrei. "Arm Announces Neoverse N1 & E1 Platforms & CPUs: Enabling A Huge Jump In Infrastructure Performance". https://www.anandtech.com/show/13959/arm-announces-neoverse-n1-platform. 
  4. "Arm Launches New Neoverse N1 and E1 Server Cores" (in en-US). 2019-02-20. https://fuse.wikichip.org/news/2075/arm-launches-new-neoverse-n1-and-e1-server-cores/. 
  5. Frumusanu, Andrei. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility". https://www.anandtech.com/show/16640/arm-announces-neoverse-v1-n2-platforms-cpus-cmn700-mesh. 
  6. Frumusanu, Andrei. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility". https://www.anandtech.com/show/16640/arm-announces-neoverse-v1-n2-platforms-cpus-cmn700-mesh. 
  7. "Arm Announces Neoverse N1 & E1 Platforms & CPUs: Enabling a Huge Jump in Infrastructure Performance". https://www.anandtech.com/show/13959/arm-announces-neoverse-n1-platform/5. 
  8. "Neoverse V1 - Microarchitectures - ARM - WikiChip". https://en.wikichip.org/wiki/arm_holdings/microarchitectures/neoverse_v1. 
  9. "Arm Announces Neoverse V1, N2 Platforms & CPUs, CMN-700 Mesh: More Performance, More Cores, More Flexibility". https://www.anandtech.com/show/16640/arm-announces-neoverse-v1-n2-platforms-cpus-cmn700-mesh/2. 
  10. "Inside Amazon's Graviton3 Arm Server Processor". 4 January 2022. https://www.nextplatform.com/2022/01/04/inside-amazons-graviton3-arm-server-processor/. 
  11. "Redefining the global computing infrastructure with next-generation Arm Neoverse platforms". https://www.arm.com/company/news/2022/09/redefining-the-global-computing-infrastructure-with-next-generation-arm-neoverse-platforms. 
  12. "Poseidon - Microarchitectures - ARM - WikiChip". https://en.wikichip.org/wiki/arm_holdings/microarchitectures/poseidon.