AWS News Blog
New AMD EPYC-Powered Amazon EC2 M5ad and R5ad Instances
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Last year I told you about our New Lower-Cost, AMD-Powered M5a and R5a EC2 Instances. Built on the AWS Nitro System, these instances are powered by custom AMD EPYC processors running at 2.5 GHz. They are priced 10% lower than comparable EC2 M5 and R5 instances, and give you a new opportunity to balance your instance mix based on cost and performance.
Today we are adding M5ad and R5ad instances, both powered by custom AMD EPYC 7000 series processors and built on the AWS Nitro System.
M5ad and R5ad Instances
These instances add high-speed, low latency local (physically connected) block storage to the existing M5a and R5a instances that we launched late last year.
M5ad instances are designed for general purpose workloads such as web servers, app servers, dev/test environments, gaming, logging, and media processing. They are available in 6 sizes:
| Instance Name | vCPUs | RAM | Local Storage | EBS-Optimized Bandwidth | Network Bandwidth |
| m5ad.large |
2 | 8 GiB | 1 x 75 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| m5ad.xlarge |
4 | 16 GiB | 1 x 150 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| m5ad.2xlarge |
8 | 32 GiB | 1 x 300 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| m5ad.4xlarge |
16 | 64 GiB | 2 x 300 GB NVMe SSD | 2.120 Gbps | Up to 10 Gbps |
| m5ad.12xlarge |
48 | 192 GiB | 2 x 900 GB NVMe SSD | 5 Gbps | 10 Gbps |
| m5ad.24xlarge |
96 | 384 GiB | 4 x 900 GB NVMe SSD | 10 Gbps | 20 Gbps |
R5ad instances are designed for memory-intensive workloads: data mining, in-memory analytics, caching, simulations, and so forth. The R5ad instances are available in 6 sizes:
| Instance Name | vCPUs | RAM | Local Storage | EBS-Optimized Bandwidth | Network Bandwidth |
| r5ad.large |
2 | 16 GiB | 1 x 75 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| r5ad.xlarge |
4 | 32 GiB | 1 x 150 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| r5ad.2xlarge |
8 | 64 GiB | 1 x 300 GB NVMe SSD | Up to 2.120 Gbps | Up to 10 Gbps |
| r5ad.4xlarge |
16 | 128 GiB | 2 x 300 GB NVMe SSD | 2.120 Gbps | Up to 10 Gbps |
| r5ad.12xlarge |
48 | 384 GiB | 2 x 900 GB NVMe SSD | 5 Gbps | 10 Gbps |
| r5ad.24xlarge |
96 | 768 GiB | 4 x 900 GB NVMe SSD | 10 Gbps | 20 Gbps |
Again, these instances are available in the same sizes as the M5d and R5d instances, and the AMIs work on either, so go ahead and try both!
Here are some things to keep in mind about the local NMVe storage on the M5ad and R5ad instances:
Naming – You don’t have to specify a block device mapping in your AMI or during the instance launch; the local storage will show up as one or more devices (/dev/nvme*1 on Linux) after the guest operating system has booted.
Encryption – Each local NVMe device is hardware encrypted using the XTS-AES-256 block cipher and a unique key. Each key is destroyed when the instance is stopped or terminated.
Lifetime – Local NVMe devices have the same lifetime as the instance they are attached to, and do not stick around after the instance has been stopped or terminated.
M5ad and R5ad instances are available in the US East (N. Virginia), US West (Oregon), US East (Ohio), and Asia Pacific (Singapore) Regions in On-Demand, Spot, and Reserved Instance form.
— Jeff;