Memory optimized Amazon EC2 instance types

Amazon EC2 R8g instances are powered by AWS Graviton4 processors. They deliver the best price performance in Amazon EC2 for memory-intensive workloads.

Features:

• Powered by custom-built AWS Graviton4 processors
• Larger instance sizes with up to 3x more vCPUs and memory than R7g instances
  
• Features the latest DDR5-5600 memory
• Optimized for Amazon EBS by default
• Instance storage offered via EBS or NVMe SSDs that are physically attached to the host server
• With R8gd instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the instance
• Supports Elastic Fabric Adapter (EFA) on r8g.24xlarge, r8g.48xlarge, r8g.metal-24xl,  r8g.metal-48xl, r8gd.24xlarge, r8gd.48xlarge, r8gd.metal-24xl, and r8gd.metal-48xl
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  

All instances have the following specs:

• Custom-built AWS Graviton4 processor
• Optimized for Amazon EBS
• Enhanced networking†

Use cases

Memory-intensive workloads such as open source databases, in-memory caches, and real-time big data analytics.

Amazon EC2 R8i instances are powered by Intel Xeon 6 processors and deliver up to 15% better price performance than R7i instances.

Features:

• Up to 3.9 GHz all-core turbo frequency
• Support for always-on memory encryption using Intel Total Memory Encryption (TME)
• Up to 384 vCPUs and 3,072 GiB memory Latest DDR5 7200MT/s memory, which offers 2.5x more bandwidth compared to previous generation 
• Instance Bandwidth Configuration (IBC) feature offers flexibility in allocating resources between network and Elastic Block Store (EBS) bandwidth, allowing customers to scale network or EBS bandwidth by 25% and improve database (read and write) performance, query processing, and logging speeds 
• 2 metal sizes: r8i.metal-48xl and r8i.metal-96xl 
• Discrete built-in accelerators (available on R8i bare metal sizes only) 
• Enhanced Advanced Matrix Extensions (AMX) with FP16 support on R8i instances enables a wider range of CPU-based inference workloads 
• Support for up to 128 EBS volume attachments per instance 
• Powered by the latest AWS Nitro System with 6th generation cards, offering enhanced networking and storage performance

Use cases

R8i instances are ideal for memory-intensive workloads, especially those that need larger sizes or high continuous CPU usage, including in-memory databases (such as SAP HANA), distributed web scale in-memory caches (Memcached and Redis), real-time big data analytics (Apache Hadoop and Apache Spark clusters), and large-scale machine learning workloads.

Amazon EC2 R8i-flex instances are powered by Intel Xeon 6 processors and deliver up to 20% better price performance compared to previous generation instances.

Features:

• Up to 3.9 GHz all-core turbo frequency 
• Support for always-on memory encryption using Intel Total Memory Encryption (TME) 
• Up to 64 vCPUs and 512 GiB memory
• Latest DDR5 7200MT/s memory, which offers 2.5x more bandwidth compared to previous generation
• Instance Bandwidth Configuration (IBC) feature offers flexibility in allocating resources between network and Elastic Block Store (EBS) bandwidth, allowing customers to scale network or EBS bandwidth by 25% and improve database (read and write) performance, query processing, and logging speeds 
• Enhanced Advanced Matrix Extensions (AMX) with FP16 data-type support accelerate matrix multiplication operations
• Support for up to 48 EBS volume attachments per instance 
• Powered by the latest AWS Nitro System with 6th generation cards, offering enhanced networking and storage performance
  

Use cases

R8i-flex instances are ideal for memory-intensive workloads that do not fully utilize all the compute resources, including SQL and NoSQL databases, distributed web scale in-memory caches (Memcached and Redis), in-memory databases, and real-time big data analytics (Apache Hadoop and Apache Spark clusters). They provide a cost-effective option for workloads with variable CPU usage patterns.

Amazon EC2 R7g instances  are powered by AWS Graviton3 processors. They are ideal for memory-intensive workloads.

Features:

• Powered by custom-built AWS Graviton3 processors
• Features DDR5 memory that offers 50% more bandwidth compared to DDR4
• 20% higher enhanced networking bandwidth compared to R6g instances
• EBS-optimized by default
• Instance storage offered via EBS or NVMe SSDs that are physically attached to the host server
• With R7gd instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the instance
• Supports Elastic Fabric Adapter (EFA) on r7g.16xlarge, r7g.metal, r7gd.16xlarge, and r7gd.metal instances
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  

All instances have the following specs:

• Custom-built AWS Graviton3 processor with 64-bit Arm cores
• EBS-optimized
• Enhanced Networking†

Use cases

Memory-intensive workloads such as open-source databases, in-memory caches, and real-time big data analytics.

Amazon EC2 R7i instances are powered by 4th Generation Intel Xeon Scalable processors and deliver 15% better price performance than R6i instances.

Features:

• Up to 3.2 GHz 4th Generation Intel Xeon Scalable processor (Sapphire Rapids 8488C)
• New Advance Matrix Extensions (AMX) accelerate matrix multiplication operations
• 2 metal sizes: r7i.metal-24xl and r7i.metal-48xl
• Discrete built-in accelerators (available on R7i bare metal sizes only)—Data Streaming Accelerator (DSA), In-Memory Analytics Accelerator (IAA), and QuickAssist Technology (QAT)—enable efficient offload and acceleration of data operations that help optimize performance for databases, encryption and compression, and queue management workloads
• Latest DDR5 memory, which offers more bandwidth compared to DDR4
• Support for always-on memory encryption using Intel Total Memory Encryption (TME)
  
• Support for up to 128 EBS volume attachments per instance
  
• Up to 192 vCPUs and 1,536GiB memory
• Supports Elastic Fabric Adapter on the 48xlarge size and metal-48xl size
  
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor

All instances have the following specs:

• Up to 3.2 GHz 4th generation Intel Xeon Scalable processors
• EBS Optimized
• Enhanced Networking†
  

Use Cases

R7i instances are SAP-certified and ideal for all memory-intensive workloads (SQL and NoSQL databases), distributed web scale in-memory caches (Memcached and Redis), in-memory databases (SAP HANA), and real-time big data analytics (Apache Hadoop and Apache Spark clusters).

Amazon EC2 R7iz instances are powered by 4th Generation Intel Xeon Scalable processors and are an ideal fit for high CPU and memory-intensive workloads.

Features:

• 4th Generation Intel Xeon Scalable Processors (Sapphire Rapids 6455B) with an all-core turbo frequency up to 3.9 GHz
• Up to 20% higher compute performance than z1d instances
• New Advance Matrix Extensions (AMX) accelerate matrix multiplication operations – available in all sizes
• Discrete built-in accelerators (available on R7iz bare metal sizes only) - Data Streaming Accelerator (DSA), In-Memory Analytics Accelerator (IAA), and QuickAssist Technology (QAT) - enable efficient offload and acceleration of data operations that help in optimizing performance for databases, encryption and compression, and queue management workloads
• Up to 50 Gbps of networking speed
• Up to 40 Gbps of bandwidth to the Amazon Elastic Block Store (EBS)
  
• Instance size with up to 128 vCPUs and 1,024 GiB of memory
• Supports Elastic Fabric Adapter on the 32xlarge size and the metal-32xl size
  
• Built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor

Use Cases

High-compute and memory-intensive workloads such as frontend Electronic Design Automation (EDA), relational database workloads with high per-core licensing fees, and financial, actuarial, and data analytics simulation workloads.

Amazon EC2 R7a instances, powered by 4th generation AMD EPYC processors, deliver up to 50% higher performance compared to R6a instances.

Features:

• Up to 3.7 GHz 4th generation AMD EPYC processors (AMD EPYC 9R14)
• Up to 50 Gbps of networking bandwidth
• Up to 40 Gbps of bandwidth to the Amazon Elastic Block Store
• Instance sizes with up to 192 vCPUs and 1,536 GiB of memory
• SAP-certified instances
• Built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• Support for always-on memory encryption using AMD secure memory encryption (SME)
• Support for new processor capabilities such as AVX3-512, VNNI, and bfloat16.

Use cases

Memory-intensive workloads, such as SQL and NoSQL databases, distributed web scale in-memory caches, in-memory databases, real-time big data analytics, and Electronic Design Automation (EDA)

Amazon EC2 R6g instances are powered by Arm-based AWS Graviton2 processors. They deliver up to 40% better price performance over current generation R5 instances for memory-intensive applications.

Features:

• Custom built AWS Graviton2 Processor with 64-bit Arm Neoverse cores
• Support for Enhanced Networking with Up to 25 Gbps of Network bandwidth
• EBS-optimized by default
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• With R6gd instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the instance
  

All instances have the following specs:

• Custom built AWS Graviton2 Processor with 64-bit Arm cores
• EBS Optimized
• Enhanced Networking

Use Cases

Memory-intensive applications such as open-source databases, in-memory caches, and real time big data analytics

Amazon R6i instances are powered by 3rd generation Intel Xeon Scalable processors (code named Ice Lake) and are an ideal fit for memory-intensive workloads.

Features:

• Up to 3.5 GHz 3rd generation Intel Xeon Scalable processors (Ice Lake 8375C)
  
• Up to 15% better compute price performance over R5 instances
  
• Up to 20% higher memory bandwidth per vCPU compared to R5 instances
  
• Up to 50 Gbps of networking speed
  
• Up to 40 Gbps of bandwidth to the Amazon Elastic Block Store
  
• A new instance size (32xlarge) with 128 vCPUs and 1,024 GiB of memory
  
• Supports Elastic Fabric Adapter on the 32xlarge and metal sizes
  
• Built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  
• Support for always-on memory encryption using Intel Total Memory Encryption (TME)
  
• Support for new Intel Advanced Vector Extension (AVX 512) instructions for faster execution of cryptographic algorithms
• With R6id instances, up to 7.6 TB of local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the R6i instance
  

All instances have the following specs:

• Up to 3.5 GHz 3rd generation Intel Xeon Scalable processors
• EBS Optimized
• Enhanced Networking

Use Cases

Memory-intensive workloads such as SAP, SQL and NoSQL databases, distributed web scale in-memory caches like Memcached and Redis, in-memory databases like SAP HANA, and real time big data analytics like Hadoop and Spark clusters.

Amazon EC2 R6in and R6idn instances are ideal for memory-intensive workloads that can take advantage of high networking bandwidth, such as SAP, SQL and NoSQL databases, and in-memory databases, such as SAP HANA. R6in and R6idn instances offer up to 200 Gbps of network bandwidth and up to 100 Gbps Amazon Elastic Block Store (EBS) bandwidth.

Features:

• Up to 3.5 GHz 3rd Generation Intel Xeon Scalable processors (Ice Lake 8375C)
• Up to 20% higher memory bandwidth per vCPU compared to R5n and R5dn instances
  
• Up to 200 Gbps of networking speed, which is up to 2x compared to R5n and R5dn instances
• Up to 100 Gbps of EBS bandwidth, which is up to 1.6x more than R5b instances
• Supports Elastic Fabric Adapter (EFA) on the 32xlarge and metal sizes
• Support for always-on memory encryption using Intel Total Memory Encryption (TME)
• Support for new Intel Advanced Vector Extensions (AVX-512) instructions for faster processing of cryptographic algorithms
• With R6idn instances, up to 7.6 TB of local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the R6idn instance lifetime
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor

****For 32xlarge and metal sizes, at least two elastic network interfaces, with each attached to a different network card, are required on the instance to achieve 200 Gbps throughput. Each network interface attached to a network card can achieve a maximum of 170 Gbps. For more information, see Network cards.

All instances have the following specs:

• Up to 3.5 GHz 3rd Generation Intel Xeon Scalable processors
• EBS-optimized
• Enhanced Networking†

Use Cases

Memory-intensive workloads that can take advantage of high networking throughput, such as SAP, SQL and NoSQL databases, and in-memory databases, such as SAP HANA.

Amazon EC2 R6a instances are powered by 3rd generation AMD EPYC processors and are an ideal fit for memory intensive workloads.

Features:

• Up to 3.6 GHz 3rd generation AMD EPYC processors (AMD EPYC 7R13)
  
• Up to 35% better compute price performance over R5a instances
  
• Up to 50 Gbps of networking speed
  
• Up to 40 Gbps of bandwidth to the Amazon Elastic Block Store
  
• Instance size with up to 192 vCPUs and 1,536 GiB of memory
  
• SAP-Certified instances
  
• Supports Elastic Fabric Adapter on the 48xlarge and metal sizes
  
• Built on the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  
• Support for always-on memory encryption using AMD Transparent Single Key Memory Encryption (TSME)
  
• Support for new AMD Advanced Vector Extensions (AVX-2) instructions for faster execution of cryptographic algorithms
  

All instances have the following specs:

• Up to 3.6 GHz 3rd generation AMD EPYC processors
• EBS-optimized
• Enhanced Networking

Use Cases

Memory-intensive workloads, such as SAP, SQL, and NoSQL databases; distributed web scale in-memory caches, such as Memcached and Redis; in-memory databases and real-time big data analytics, such as Hadoop and Spark clusters; and other enterprise applications

Amazon EC2 R5 instances deliver 5% additional memory per vCPU than R4 and the largest size provides 768 GiB of memory. In addition, R5 instances deliver a 10% price per GiB improvement and a ~20% increased CPU performance over R4.

Features:

• Up to 3.1 GHz Intel Xeon® Platinum 8000 series processors (Skylake 8175M or Cascade Lake 8259CL) with new Intel Advanced Vector Extension (AVX-512) instruction set
• Up to 768 GiB of memory per instance
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  
• With R5d instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the R5 instance
  
• New 8xlarge and 16xlarge sizes now available.
  

*r5.metal and r5d.metal provide 96 logical processors on 48 physical cores; they run on single servers with two physical Intel sockets

All instances have the following specs:

• Up to 3.1 GHz Intel Xeon Platinum Processor
• Intel AVX†, Intel AVX2†, Intel AVX-512, Intel Turbo
• EBS Optimized
• Enhanced Networking†

Use Cases

R5 instances are well suited for memory intensive applications such as high performance databases, distributed web scale in-memory caches, mid-size in-memory databases, real time big data analytics, and other enterprise applications.

Amazon EC2 R5 instances are ideal for memory-bound workloads including high performance databases, distributed web scale in-memory caches, mid-sized in-memory database, real time big data analytics, and other enterprise applications. The higher bandwidth, R5n and R5dn, instance variants are ideal for applications that can take advantage of improved network throughput and packet rate performance.

Features:

• 2nd generation Intel Xeon Scalable Processors (Cascade Lake 8259CL) with a sustained all-core Turbo CPU frequency of 3.1 GHz and maximum single core turbo frequency of 3.5 GHz
• Support for the new Intel Vector Neural Network Instructions (AVX-512 VNNI) which will help speed up typical machine learning operations like convolution, and automatically improve inference performance over a wide range of deep learning workloads
• 25 Gbps of peak bandwidth on smaller instance sizes
• 100 Gbps of network bandwidth on the largest instance size
• Requires HVM AMIs that include drivers for ENA and NVMe
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• Instance storage offered via EBS or NVMe SSDs that are physically attached to the host server
• With R5dn instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the R5 instance

*r5n.metal and r5dn.metal provide 96 logical processors on 48 physical cores.

All instances have the following specs:

• Custom 2nd generation Intel Xeon Scalable Processors (Cascade Lake) with a sustained all-core Turbo CPU frequency of 3.1 GHz and maximum single core turbo frequency of 3.5 GHz
• Intel AVX†, Intel AVX2†, Intel AVX-512, Intel Turbo, Intel DL Boost
• EBS Optimized
• Enhanced Networking†

Use Cases

High performance databases, distributed web scale in-memory caches, mid-sized in-memory database, real time big data analytics and other enterprise applications

Amazon EC2 R5b instances are EBS-optimized variants of memory-optimized R5 instances. R5b instances increase EBS performance by 3x compared to same-sized R5 instances. R5b instances deliver up to 60 Gbps bandwidth and 260K IOPS of EBS performance, the fastest block storage performance on EC2.

Features:

• Custom 2nd generation Intel Xeon Scalable Processors (Cascade Lake 8259CL) with a sustained all-core Turbo CPU frequency of 3.1 GHz and maximum single core turbo frequency of 3.5 GHz
• Up to 96 vCPUs, Up to 768 GiB of Memory
• Up to 25 Gbps network bandwidth
• Up to 60 Gbps of EBS bandwidth
  

Use Cases

High performance databases, distributed web scale in-memory caches, mid-size in-memory databases, real time big data analytics.

Amazon EC2 R5a instances are the latest generation of Memory Optimized instances ideal for memory-bound workloads and are powered by AMD EPYC 7000 series processors. R5a instances deliver up to 10% lower cost per GiB memory over comparable instances.

Features:

• AMD EPYC 7000 series processors (AMD EPYC 7571) with an all core turbo clock speed of 2.5 GHz
  
• Up to 20 Gbps network bandwidth using Enhanced Networking
• Up to 768 GiB of memory per instance
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• Instance storage offered via EBS or NVMe SSDs that are physically attached to the host server
• With R5ad instances, local NVMe-based SSDs are physically connected to the host server and provide block-level storage that is coupled to the lifetime of the R5a instance

All instances have the following specs:

• 2.5 GHz AMD EPYC 7000 series processors
• EBS Optimized
• Enhanced Networking†

Use Cases

R5a instances are well suited for memory intensive applications such as high performance databases, distributed web scale in-memory caches, mid-size in-memory databases, real time big data analytics, and other enterprise applications.

Amazon EC2 R4 instances are optimized for memory-intensive applications and offer better price per GiB of RAM than R3.

Features:

• High Frequency Intel Xeon scalable (Broadwell E5-2686 v4) processors
• DDR4 Memory
• Support for Enhanced Networking
  

All instances have the following specs:

• Up to 2.3 GHz Intel Xeon Scalable Processor
• Intel AVX†, Intel AVX2†, Intel Turbo
• EBS Optimized
• Enhanced Networking†

Use Cases

High performance databases, data mining & analysis, in-memory databases, distributed web scale in-memory caches, applications performing real-time processing of unstructured big data, Hadoop/Spark clusters, and other enterprise applications.

Amazon EC2 High Memory U7i instances are purpose built to run large in-memory databases such as SAP HANA and Oracle.

Features:

• Offer up to 1920 vCPUs
• Featuring DDR5 memory
• Up to 32 TiB of instance memory
  
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• Virtualized instances are available with On-Demand and with 1-year and 3-year Savings Plan purchase options*
  

* U7inh instances are available as a 3-year Instance Savings Plan Purchase.

U7i instances, powered by fourth generation Intel Xeon Scalable Processors (Sapphire Rapids), offer up to 32TiB of the latest DDR5 memory and up to 1920 vCPUs. 

All instances have the following specs:

• Intel AVX, Intel AVX2, Intel Turbo
• EBS Optimized
• Enhanced Networking†

Use Cases

Ideal for running large enterprise databases, including SAP HANA in-memory database in the cloud. 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. For details, see SAP HANA Hardware Directory.

Amazon EC2 High Memory (U-1) instances are purpose built to run large in-memory databases, including production deployments of SAP HANA in the cloud.

Features:

• Now available in both bare metal and virtualized memory
  
• 3 and 6 TiB instances memory
  
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
• Virtualized instances are available with On-Demand and with 1-year and 3-year Savings Plan purchase options
  

**Some instances launched before March 12, 2020 might offer lower performance, 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

• 3 and 6 TB instances are powered by 2.1 GHz (with Turbo Boost to 3.80 GHz) Intel Xeon Scalable processors (Skylake 8176M) or 2nd Generation 2.7 GHz (with Turbo Boost to 4.0 GHz) Intel Xeon Scalable processors (Cascade Lake 8280L)
  

All instances have the following specs:

• Intel AVX, Intel AVX2, Intel Turbo
• EBS Optimized
• Enhanced Networking†

Use Cases

Ideal for running large enterprise databases, including production installations of SAP HANA in-memory database in the cloud. 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.

Amazon EC2 X8g instances are powered by AWS Graviton4 processors. They deliver the best price performance among Amazon EC2 X-series instances.

Features:

• Powered by custom-built AWS Graviton4 processors
• Larger instance sizes with up to 3x more vCPUs and memory than X2gd instances
  
• Features the latest DDR5-5600 memory
• Optimized for Amazon EBS by default
• Supports Elastic Fabric Adapter (EFA) on x8g.24xlarge, x8g.48xlarge, x8g.metal-24xl, and x8g.metal-48xl
• Powered by the AWS Nitro System, a combination of dedicated hardware and lightweight hypervisor
  

All instances have the following specs:

• Custom-built AWS Graviton4 processor
• Optimized for Amazon EBS
• Enhanced networking†

Use cases

Memory-intensive workloads such as in-memory databases (Redis, Memcached), relational databases (MySQL, PostgreSQL), electronic design automation (EDA) workloads, real-time big data analytics, real-time caching servers, and memory-intensive containerized applications.