Ampere Computing Logo
Contact Sales
Ampere Computing Logo
Ampere Altra Family of Cloud Native Processors feature up to 128 cores and a single-threaded design

Ampere Altra Family Product Brief

Ampere® Altra® Family 64-Bit Multi-Core Processors

Designed to meet the requirements of modern Cloud Native Computing environments, the Ampere® Altra® Family are an innovative architectural family of Cloud Native Processors designed to be:

  • High Performance and Predictable
  • Elastic and Scalable
  • Power Efficient and Sustainable

The Ampere Altra Family includes products that provide efficient computing solutions for a variety of computing needs from power and space-constrained embedded devices to edge Computing installations to the digital Enterprise and Hyperscale Data Centers.

Features Specific to Core Count
Product NameProduct Core CountSystem Level CacheI/O Connectivity 
Ampere Altra32 Cores | 64 Cores | 80 Cores32 MB48 Controllers Bifurcation to x4 and x2
Ampere Altra Max96 Cores | 128 Cores16 MB32 Controllers Bifurcation to x4

Ampere Altra Family Common Features

Private Caches

  • L2: 1 MB per Core
  • L1: 64K Instruction and 64K Data per Core

Cloud Native Features

  • Single Threaded Cores
  • Consistent Frequency up to 3.0 GHz
  • 2x128b Vector Units, FP16, Int16, Int8
  • Advanced Power Management, Dynamic Estimation, Voltage droop detection

System Features

  • Interrupt Virtualization (GICv3)
  • IO Virtualization (SMMUv3, SRIOV)
  • Enterprise RAS: SECDED ECC protected memory throughout
  • Coherent Mesh Interconnect with distributed snoop filtering


  • 8 Channels 72-bit DDR4-3200 with ECC
  • Up to 16 DIMMs (2DPC) and 4 TB total memory


  • 128 Lanes PCIe Gen4 (optional 64 lane CCIX for multi-socket support)

Other Specifications

  • Instruction Set Compatibility: Armv8.2+, SBSA 4
  • Independent System and Power Controllers (SMpro and PMpro)
  • PCBA System Support: I2C, GPIO, QSPI and GPI Interrupt Support, System and Watchdog Timer Support
  • Operating Junction Temperature Range: 0°C to 90°C
  • Process: TSMC 7 nm FinFET
  • Socket Compatible Packages: 4926-Pin FCLGA
High Performance and Predictable

The Ampere Altra Family offers products from 32 cores to 128 cores operating at a consistent and predictable frequency of up to 3.0 GHz. Each core is single-threaded by design with its own 64 KB L1 Instruction-cache, 64 KB L1 Data-cache, and a huge 1 MB L2 private cache.

Large private caching, consistent operating frequency, and single threaded cores combine to deliver predictable performance mitigating noisy neighbor challenges in multi-core processing architectures while providing a very secure microarchitecture for multi-tenant cloud environments.

A coherent mesh interconnect provides efficient bandwidth with 32 distributed home nodes and directory-based snoop filters to enable seamless connectivity between the cores.

Supporting eight 72-bit DDR4-3200 channels, Ampere Altra Family processors offer leading memory bandwidth and a large addressable space up to 4 TB of memory.

Elastic and Scalable

Using industry leading power efficiency per core, the Ampere Altra family provides high performance processing products from 32 cores to 128 cores providing the scalability to deploy dense compute from the most power and space-constrained environments in devices at the edge to the most demanding compute installations on the planet in hyperscale data centers.

Dense Cloud Native Processors deliver the most cores per rack, maximize the number of servers per rack, and provide the highest performance per rack for the most sustainable and power-efficient computing installations in the industry.

The Ampere Altra Family provides consistent incremental performance on a per core basis. Workloads scale linearly as more processes are added to the single threaded cores. For dense virtual machine implementations, more VMs can be provisioned on Ampere Altra Family high core count processors than other competing processors.

With up to 128 lanes of PCIe Gen4 per socket, the Ampere Altra Family provides the flexibility to add up to 48 off-chip devices, including networking cards, storage/NVMe devices, GPUs, and other accelerators. Ampere Altra platforms are well suited to a variety of system configurations supporting high performance networking, AI inference, large capacity storage, and cloud gaming applications.

Power Efficient and Sustainable

The Ampere Altra Family leads the industry in performance per rack allowing operators and IT designers an unprecedented compute capacity for power and space-constrained environments. This advantage reduces rack and floor space, trims power requirements for operational efficiency, and saves money. Carbon footprints are drastically reduced allowing managers to meet aggressive ESG goals and shorten the time to Net-Zero emissions initiatives.

The most power-efficient products in the Ampere Altra Family allow Cloud Native workloads at scale to reduce power consumption by up to 3X over the legacy x86 ecosystem. This efficiency can reduce any operational IT budget by 10s to 100s of millions of dollars.

Up to a third of the space and equipment required to rack and sustain a server infrastructure can be saved by using Ampere Altra Family processors. The space savings also reduce embodied carbon, further adding to the sustainability benefits of using Ampere enabled compute platforms.

See how Ampere makes data centers more efficient

Ampere Altra Family Products
Q80-30803.0 161AC-108021002

The Export Control Classification Number (ECCN) for the Ampere Altra Family products is 5A992.C. This information is provided AS-IS, for informational purposes only, is not a representation or warranty of any kind, and is subject to change without notice. Ampere is not responsible for any losses or damages of any kind incurred as a result of using or relying on this information. Each purchaser, consignee or user of Ampere products is solely responsible for its compliance with all applicable laws and regulations. For additional information, please contact

For more information, please contact sales or email

Ampere Altra Family Ecosystem

Ampere Computing reserves the right to change or discontinue this product without notice.

While the information contained herein is believed to be accurate, such information is preliminary, and should not be relied upon for accuracy or completeness, and no representations or warranties of accuracy or completeness are made.

The information contained in this document is subject to change or withdrawal at any time without notice and is being provided on an “AS IS” basis without warranty or indemnity of any kind, whether express or implied, including without limitation, the implied warranties of non-infringement, merchantability, or fitness for a particular purpose.

Any products, services, or programs discussed in this document are sold or licensed under Ampere Computing’s standard terms and conditions, copies of which may be obtained from your local Ampere Computing representative. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Ampere Computing or third parties.

Without limiting the generality of the foregoing, any performance data contained in this document was determined in a specific or controlled environment and not submitted to any formal Ampere Computing test. Therefore, the results obtained in other operating environments may vary significantly. Under no circumstances will Ampere Computing be liable for any damages whatsoever arising out of or resulting from any use of the document or the information contained herein.

Ampere Computing reserves the right to make changes to its products, its datasheets, or related documentation, without notice and warrants its products solely pursuant to its terms and conditions of sale, only to substantially comply with the latest available datasheet.

Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. All other trademarks are the property of their respective holders.

Created At : May 11th 2023, 3:55:07 pm
Last Updated At : February 15th 2024, 8:30:33 pm
Ampere Logo

Ampere Computing LLC

4655 Great America Parkway Suite 601

Santa Clara, CA 95054

 |  |  |  |  |  | 
© 2023 Ampere Computing LLC. All rights reserved. Ampere, Altra and the A and Ampere logos are registered trademarks or trademarks of Ampere Computing.
This site is running on Ampere Altra Processors.