New Amazon EC2 R7iz Instances are Optimized for High CPU Performance, Memory-Intensive Workloads

September 8, 2023

Today we’re announcing general availability of the Amazon EC2 R7iz instances. R7iz instances are the fastest 4th Generation Intel Xeon Scalable-based (Sapphire Rapids) instances in the cloud with 3.9 GHz sustained all-core turbo frequency. R7iz instances are suitable for workloads where there’s a requirement for more memory to process additional data, larger sizes of instances to scale up, higher compute and memory performance to reduce completion times, and higher networking and Amazon Elastic Block Store (Amazon EBS) performance to improve latency. The high compute performance of the R7iz instances, combined with a large amount of memory, results in increased overall performance for applications that include front-end electronic design automation (EDA), relational database workloads with high per core licensing fees, and financial, actuarial, and data analytics simulation workloads. This can help you speed time to market for product development while reducing licensing costs.

R7iz Instances

The specs for the R7iz instances are as follows.

Memory (GiB)
Network Bandwidth
EBS Bandwidth
r7iz.large 2 16 Up to 12.5 Gbps Up to 10 Gbps
r7iz.xlarge 4 32 Up to 12.5 Gbps Up to 10 Gbps
r7iz.2xlarge 8 64 Up to 12.5 Gbps Up to 10 Gbps
r7iz.4xlarge 16 128 Up to 12.5 Gbps Up to 10 Gbps
r7iz.8xlarge 32 256 12.5 Gbps 10 Gbps
r7iz.12xlarge 48 384 25 Gbps 19 Gbps
r7iz.16xlarge 64 512 25 Gbps 20 Gbps
r7iz.32xlarge 128 1024 50 Gbps 40 Gbps

You can attach up to 88 EBS volumes to each R7iz instance; by way of comparison, the z1d instances allow you to attach up to 28 volumes.

We are also getting ready to launch two sizes of bare metal R7iz instances:

Memory (GiB)
Network Bandwidth
EBS Bandwidth
r7iz.metal-16xl 64 512 25 Gbps 20 Gbps
r7iz.metal-32xl 128 1024 50 Gbps 40 Gbps

 Built-in Accelerators
R7iz instances also include four built-in accelerators: Advanced Matrix Extensions (AMX), Intel Data Streaming accelerator (DSA), Intel In-Memory Analytics Accelerator (IAA), and Intel QuickAssist Technology( QAT). Some of these accelerators require the use of specific kernel versions, drivers, and/or compilers. The Advanced Matrix Extensions are available on all sizes of R7iz instances while the Intel QAT, Intel IAA, and Intel DSA accelerators will be available on the r7iz.metal-16xl and r7iz.metal-32xl instances (coming soon).

Available Now
R7iz instances are generally available today in the US East (N. Virginia), and US West (Oregon) AWS Regions. As usual with Amazon EC2, you pay only for what you use. For more information, see Amazon EC2 pricing.

To learn more, visit our Amazon EC2 R7iz instances page, and please send feedback to AWS re:Post for EC2 or through your usual AWS Support contacts.