Graviton5’s improved design increases speed and energy efficiency — beyond Moore’s law
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source ↗AWS Graviton5: How a new chiplet architecture delivers 25% better performance - Amazon Science
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The AWS Graviton5 processor. Its four-chiplet design houses 192 cores connected by custom die-to-die links providing up to 420 gigabytes per second of bandwidth.
Cloud and systems
Graviton5’s improved design increases speed and energy efficiency — beyond Moore’s law
A new chiplet architecture, custom die-to-die connectivity, and support for DDR5-8800 memory and the latest PCIe gen6 interconnects improve performance by 25% for general-purpose and agentic AI workloads.
By Ali Saidi
June 10, 2026
3 min read
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Overview by Amazon Nova
Graviton5 introduces a four-chiplet architecture with custom die-to-die connectivity, enabling up to 420 GB/s bandwidth between chiplets and reducing memory latency. The new chiplet design allows for 192 cores, doubling the core count from Graviton4, and includes 192 MB of L3 cache, over five times as much as the previous generation had. Graviton5 supports DDR5-8800 memory and PCIe gen6 interconnects and moves to a three-nanometer process for greater circuit density and faster on-chip communication. The Neoverse V3 core in Graviton5 improves branch prediction, leading to up to 30% better performance for real applications like databases. The Nitro Isolation Engine, a formally verified cloud hypervisor, enhances security by enforcing isolation between VMs with mathematical precision.
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AWS Graviton processors have improved steadily across generations, with each iteration delivering advances in computational performance, price performance, energy efficiency, and memory capacity. Today, Amazon announced the general availability of the new M9g and M9gd instances of its Elastic Compute Cloud (EC2), for general-purpose workloads. These are the first Amazon products powered by Graviton5, the latest generation of Amazon’s CPU. After five generations of custom silicon and eight years of continuous investment, Graviton powers over 350 instance types that are suitable for workloads including web applications, microservices, analytics, databases, machine learning inference, electronic design automation, gaming, video encoding, and agentic AI. Graviton5 doubles the number of cores from Graviton4, from 96 to 192, and it supports DDR5-8800 memory and the latest PCIe gen6 interconnects. We’ve worked closely with leading DRAM manufactures to meet the DDR5-8800 level of performance, and AWS Graviton instances deliver the fastest memory of any processor instances in the cloud. With Graviton5, Amazon also moved to a three-nanometer process, enabling greater circuit density and faster on-chip communication. Not only does Graviton5 pack in more cores than Graviton4, but each of those cores offers 25% better performance. We've talked for a while about how micro benchmarks are very different from big, real-life workloads, and we design for our customers’ actual workloads — not small loops but all the code and complexity...
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Notability
notability 5.0/10Graviton5 chip launch boosts AI compute efficiency.