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Amazon EC2 High Memory (U-1) Instances

Built on AWS Nitro System with up to 6TiB of memory in a single instance

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Amazon EC2

EC2 U-1 High Memory instances (9/12/18/24TB) sales ended on 6/20/25. AWS recommends using U7i for new customers ","itemOption":"right"},"metadata":{"tags":[]}}]},"metadata":{"auth":{},"testAttributes":{}},"context":{"page":{"pageUrl":"https://aws.amazon.com/ec2/instance-types/high-memory/"},"contentType":"page","environment":{"stage":"prod","region":"us-west-2"},"sdkVersion":"2.0.26"},"refMap":{"manifest.js":"84d224634a","rt-text-media-collection.css":"2d4d6e3ab7","rt-text-media-collection.js":"66c2609595","rt-text-media-collection.rtl.css":"938ba37e09","rt-text-media-collection.css.js":"0500262627","rt-text-media-collection.rtl.css.js":"273b63aede"},"settings":{"templateMappings":{"hyperlinkText":"itemCTALabel","hyperlinkUrl":"itemCTAURL","heading":"itemHeading","dark":"itemBoolean","videoOverlayDark":"itemBoolean","mediaAltText":"itemMediaAltText","mediaPosition":"itemOption","mediaUrl":"itemMediaURL","subheader":"itemTextLoc","bodyContent":"itemLongLoc","videoThumbnailUrl":"itemMediaURL2","videoOverlayTitle":"itemMediaAltText2","videoPlayButtonText":"itemTextLoc2"}}}

EC2 High Memory (U-1) instances offer 3 and 6 TiB of memory in an instance. These instances are purpose-built to run large in-memory databases, including production deployments of the SAP HANA in-memory database, in the cloud.  \n

EC2 High Memory (U-1) instances are EBS-Optimized by  default offering up to 38 Gbps of dedicated storage bandwidth to encrypted and unencrypted EBS volumes. These instances deliver high networking throughput and low-latency with up to 100 Gbps of aggregate network bandwidth using Amazon Elastic Network Adapter (ENA)-based Enhanced Networking. EC2 High Memory (U-1) instances with 3 and 6 TiB are powered by an 8-socket platform with Intel® Xeon® Platinum 8176M (Skylake) or 8280L (Cascade Lake) processors.  \n

Amazon EC2 High Memory (U-1) instances are certified by SAP for running Business Suite on HANA, the next-generation business Suite S/4HANA, Data Mart Solutions on HANA, Business Warehouse on HANA, and SAP BW/4HANA in production environments.
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To get started, reach out your AWS account team or contact us here.","itemOption":"right"},"metadata":{"tags":[]}},{"fields":{"itemMediaAltText":"Missing alt text value","itemMediaURL2":"https://d1.awsstatic.com/onedam/marketing-channels/website/aws/en_US/product-categories/compute/approved/images/63062445-9db7-405f-8828-e96de83a87a9.42db36a2b5c731346b00a11b26d80a6a50ddcb23.jpeg","itemOption":"left","itemMediaURL":"https://youtu.be/SYcOpeCKJHY","id":"ams#c2","itemHeading":"Overview of EC2 High Memory (U-1) instances","itemTextLoc3":null,"itemBoolean":"false"},"metadata":{"tags":[]}},{"fields":{"id":"ams#c3","itemHeading":"Now available in virtualized sizes","itemTextLoc3":null,"itemBoolean":"false","itemLongLoc":"

High Memory (U-1) instances are now available in virtualized sizes with 3 and 6 TiB of memory.  ","itemOption":"right"},"metadata":{"tags":[]}},{"fields":{"patternHeading":" ","patternBoolean2":"false","id":"ams#text-media-collectionc4#pattern-data","patternColumns":"3"},"metadata":{"tags":[{"name":"pattern-data","description":"Default pattern data","id":"ams#text-media-collectionc4#pattern-data","namespaceId":"text-media-collection"}]}}]},"metadata":{"auth":{},"testAttributes":{}},"context":{"page":{"pageUrl":"https://aws.amazon.com/ec2/instance-types/high-memory/"},"contentType":"page","environment":{"stage":"prod","region":"us-west-2"},"sdkVersion":"2.0.26"},"refMap":{"manifest.js":"84d224634a","rt-text-media-collection.css":"2d4d6e3ab7","rt-text-media-collection.js":"66c2609595","rt-text-media-collection.rtl.css":"938ba37e09","rt-text-media-collection.css.js":"0500262627","rt-text-media-collection.rtl.css.js":"273b63aede"},"settings":{"templateMappings":{"hyperlinkText":"itemCTALabel","hyperlinkUrl":"itemCTAURL","heading":"itemHeading","dark":"itemBoolean","videoOverlayDark":"itemBoolean","mediaAltText":"itemMediaAltText","mediaPosition":"itemOption","mediaUrl":"itemMediaURL","subheader":"itemTextLoc","bodyContent":"itemLongLoc","videoThumbnailUrl":"itemMediaURL2","videoOverlayTitle":"itemMediaAltText2","videoPlayButtonText":"itemTextLoc2"}}}

Product Details

Name
Logical Processors*
Memory (GiB)
Instance Storage (GB)
Network Bandwidth (Gbps)
EBS Bandwidth (Gbps)
u-3tb1.56xlarge
224
3,072
EBS-Only
50
19
u-6tb1.56xlarge
224
6,144
EBS-Only
100
38
u-6tb1.112xlarge
448
6,144
EBS-Only
100
38
u-6tb1.metal**
448
6,144
EBS-Only
100
38

**Some instances launched before March 12, 2020 might offer lower Network and EBS bandwidth, please reach out to your account team to upgrade your instance (at no additional cost) for higher performance

* Each logical processor is a hyperthread on 224 cores

Customer testimonials

Here is an example of how customers and partners have achieved their business agility, price performance, cost savings, and sustainability goals with Amazon EC2 High Memory (U-1) instances.

SAP

SAP uses High-Memory instances from AWS to power its extensive RISE with SAP offering. Our customers continue to benefit from the reliability and performance these instances offer, and we look forward to the next generation leveraging Intel Sapphire Rapids processors that can provide customers with up to 32TB of memory for SAP S/4HANA Cloud as part of RISE with SAP.

Juergen Mueller, Chief Technology Officer and member of the Executive Board of SAP SE
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