---
格式版本: 2
标题: "Amazon EC2 R9g and R9gd memory optimized instances are now available"
原文链接: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/amazon-ec2-r9g-and-r9gd-memory-optimized-instances-are-now-available/"
发布日期: "2026-08-31"
发布时间校准状态: "found"
发布时间需复核: "否"
发布时间来源: "llm:local:original_script_field"
发布时间证据: "postDateTime: 2026-08-31T18:08:00Z"
发布时间校准原因: "候选日期来自原始脚本字段中的postDateTime，符合文章发布时间的标准标识。"
发布时间校准置信度: "1"
发布时间候选数量: 1
发布时间严格候选数量: 0
发布时间原页读取状态: "source template page reused from URL open"
发布时间未找到原因: ""
发布时间校准时间: "2026-09-01T06:05:05+08:00"
发布时间仲裁状态: "confirmed"
发布时间仲裁尝试次数: 1
发布时间仲裁耗时毫秒: 4140
发现时间: "2026-09-01T06:05:01+08:00"
入库时间: "2026-08-31T22:05:09.453Z"
来源平台: "固定入口"
搜索渠道: "fixed_url"
搜索词: "https://aws.amazon.com/new"
匹配关键词:
  - "performance"
相关厂家:
  - "AWS"
相关专家:
  []
内容类型: "网页"
抓取工具: "Free Fetch + Defuddle"
清洗工具: "Defuddle Markdown + Defuddle/Readability 正文提取"
原始附件:
  []
AI摘要: "AWS 宣布基于 Graviton5 处理器的 EC2 R9g/R9gd 内存优化实例正式可用，适用于数据库、内存缓存和实时大数据等负载。"
AI摘要模型: "ali-deepseek-v4-flash"
AI摘要时间: "2026-08-31T23:36:54.902Z"
AI优质: "否"
AI打分: 54
AI分档: "非优质"
AI质检状态: "不通过"
AI打分理由: "正文是AWS官方发布R9g/R9gd内存优化云实例GA，新增Graviton5、相对R8g最高25%计算提升、部分负载性能提升、第五代缓存规模、Nitro Isolation Engine、首发区域及购买方式等事实；固定知识库未显示同一产品重复记录，但未命中不能证明首次出现。当前页面来源权威且发布信息完整，不过主线是通用CPU云实例和数据库、缓存、Web等内存密集型应用，机器学习仅为性能对比之一，没有AI机架、rack-scale拓扑、GPU互连、供电、液冷或机架级部署机制，命中弱相关强否决，最高54分。"
AI质检模型: "gpt-5.6-sol"
AI质检时间: "2026-09-01T07:40:37+08:00"
AI主题相关性: 4
AI来源权威性: 15
AI新颖性: 10
AI技术细节: 8
AI商业部署信号: 8
AI完整性: 9
AI评分提示词版本: "v17-精简生产版"
AI评分提示词SHA256: "48fb9777f386026761b4873eaff30807694fb11e9b352d7c69bf2dfde750cc7d"
AI评分知识库版本: "knowledge_base_v1-20260819+runtime.63"
AI评分知识库SHA256: "b2a4248d43868dee4c86d2b502d43668e260aea6b69d15f73a5dfe53287ca63f"
AI评分知识库检索词: "[\"AWS\",\"performance\",\"https://aws.amazon.com/new\",\"EC2\",\"R9g\",\"R9gd\",\"Graviton5\",\"CPUs\",\"US\",\"EKS\",\"ECS\",\"NET\"]"
AI评分知识库命中: "[{\"id\":\"runtime-bf6a5bdbe28961c50fb91e45\",\"title\":\"Amazon EC2 P6-B300 instances are now available in additional AWS Regions\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-28\",\"matchedTerms\":[\"AWS\",\"EC2\",\"US\",\"NET\"],\"rank\":-18.160200565843226},{\"id\":\"runtime-9f43a79e9c23b1f329d8a71a\",\"title\":\"AWS and NVIDIA to Deliver 2 Million Additional GPUs and Next-Generation Infrastructure for Agentic and Physical AI\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-26\",\"matchedTerms\":[\"AWS\",\"performance\",\"EC2\",\"CPUs\",\"US\",\"NET\"],\"rank\":-17.25098019339749},{\"id\":\"runtime-52343a012216677e078ffdd2\",\"title\":\"NVIDIA NVLink Fusion Expands With NVHBM Custom High-Bandwidth Memory\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-26\",\"matchedTerms\":[\"AWS\",\"performance\",\"CPUs\",\"US\",\"NET\"],\"rank\":-12.233176491611436},{\"id\":\"runtime-b86df24f43e82ced83868dce\",\"title\":\"AWS, Anthropic Complete Project Rainier AI Cluster\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-17\",\"matchedTerms\":[\"AWS\",\"performance\",\"US\",\"NET\"],\"rank\":-9.581601753959148},{\"id\":\"runtime-15c79e6868a9b43f99c061a9\",\"title\":\"Nvidia’s AI Boom Tests Data Center Infrastructure Limits\",\"sourceType\":\"ai_excellent_article\",\"time\":\"2026-08-27\",\"matchedTerms\":[\"AWS\",\"performance\",\"CPUs\",\"US\",\"NET\"],\"rank\":-9.344098590958037}]"
采集批次: "2026年9月1日6点04分57秒"
采集批次ID: "20260901-060457-414"
去重键: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/amazon-ec2-r9g-and-r9gd-memory-optimized-instances-are-now-available"
---

Starting today, Amazon Elastic Compute Cloud (Amazon EC2) R9g and R9gd instances, powered by AWS Graviton5 processors, are generally available. AWS Graviton5 processors are the fifth generation of custom-designed CPUs, delivering the best price performance for memory-intensive workloads running on Amazon EC2.

R9g instances are ideal for memory-intensive workloads including databases, in-memory caches, real-time big data analytics, Linux-based workloads including containerized and micro-service-based applications (e.g. Kubernetes, Docker, EKS, ECS), as well as applications written in popular programming languages such as C/C++, Rust, Go, Java, Python,.NET Core, Node.js, Ruby, and PHP.

R9gd instances offer local NVMe-based SSD block-level storage for customers. R9gd instances are great for memory-intensive workloads such as open-source databases, distributed real-time big data analytics, large in-memory databases, and large caching workloads.

R9g and R9gd instances deliver up to 25% better compute performance compared to AWS Graviton4-based R8g and R8gd instances. They are up to 30% faster for databases, up to 35% faster for web applications, and up to 35% faster for machine learning. They feature 5x larger cache and the fastest memory of any processor instances in the cloud. These instances are built on the sixth generation [AWS Nitro System](https://aws.amazon.com/ec2/nitro/) and are the first to feature the [Nitro Isolation Engine](https://aws.amazon.com/blogs/compute/aws-nitro-isolation-engine-formally-verifying-the-hypervisor-in-the-aws-nitro-system/), harnessing formal verification to provide mathematical assurance that customer workloads are isolated from each other and AWS operators, pioneering a new standard for mathematically proven cloud security.

R9g and R9gd instances are available in US East (N. Virginia, Ohio), US West (Oregon), and EU (Frankfurt) regions. R9g and R9gd instances are available for purchase via Savings Plans, On-Demand, Spot instances, Dedicated instances, or Dedicated hosts.

[Level up your compute with AWS Graviton](https://aws.amazon.com/ec2/graviton/level-up-with-graviton/) and [get started today.](https://aws.amazon.com/ec2/instance-types/r9g/)