# ARM Support
<a name="arm-support"></a>

This topic covers how to create a cluster with an ARM node group, and how to add an ARM node group to an existing cluster.

EKS supports 64-bit ARM architecture with its [Graviton processors](https://aws.amazon.com/ec2/graviton/). To create a cluster, select one of the Graviton-based instance types (`a1`, `t4g`, `m6g`, `m7g`, `m6gd`, `c6g`, `c7g`, `c6gd`, `r6g`, `r7g`, `r6gd`, `m8g`, `r8g`, `c8g`) and run:

```
eksctl create cluster --node-type=a1.large
```

or use a config file:

```
---
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: cluster-arm-1
  region: us-west-2


nodeGroups:
  - name: ng-arm-1
    instanceType: m6g.medium
    desiredCapacity: 1
```

```
eksctl create cluster -f cluster-arm-1.yaml
```

ARM is also supported in managed nodegroups:

```
---
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig

metadata:
  name: cluster-arm-2
  region: us-west-2

managedNodeGroups:
  - name: mng-arm-1
    instanceType: m6g.medium
    desiredCapacity: 1
```

```
eksctl create cluster -f cluster-arm-2.yaml
```

The AMI resolvers, `auto` and `auto-ssm`, will infer the correct AMI based on the ARM instance type. Only AmazonLinux2023, AmazonLinux2 and Bottlerocket families have EKS optimized AMIs for ARM.

**Note**  
ARM is supported for clusters with version 1.15 and higher.