AWS Unveils Next-Generation Graviton5 Processor at re:Invent 2025
December 5, 2025
Amazon Web Services has launched the latest iteration of its custom silicon, the Graviton5 processor, marking a significant step in the cloud giant's strategy to reduce reliance on external chip vendors and offer more cost-effective and performant computing options to its customers. The move underscores the intensifying competition in the cloud infrastructure market, where proprietary silicon is becoming a key differentiator for performance, efficiency, and cost control.
The new chip was announced at the AWS re:Invent 2025 conference in Las Vegas. Manufactured using advanced 3-nanometer process technology, the Graviton5 features a substantial architectural leap over its predecessor. Each processor now packs 192 cores, supported by a cache that is five times larger. AWS states that its design reduces inter-core communication latency by up to 33 percent, while also boosting network bandwidth by 15 percent and Amazon Elastic Block Store bandwidth by 20 percent on average.
Initial performance claims are substantial. According to AWS, the new Graviton5-based EC2 M9g instances, tailored for general-purpose workloads, deliver up to 25 percent higher performance than the prior generation. These M9g instances are now available in preview. The company plans to follow with C9g instances for compute-intensive workloads and R9g instances for memory-intensive applications in 2026.
The launch of Graviton5 is part of a broader hardware push from AWS at the event, which also included the general availability of its Trainium3 AI accelerators and a preview of the future Trainium4 chip. This rapid cadence of in-house silicon development signals AWS's commitment to vertically integrate its stack, potentially offering customers better price-to-performance ratios for a widening array of workloads, from general-purpose applications to specialized AI training. The continued evolution of the Graviton line puts pressure on rival cloud providers and traditional CPU manufacturers, as the economics of cloud computing increasingly favor custom, optimized hardware.
Source: datacenterdynamics
AWS Unveils Next-Generation Graviton5 Processor at re:Invent 2025
