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# AWS::EC2::LaunchTemplate Cpu
<a name="aws-properties-ec2-launchtemplate-cpu"></a>

Specifies the CPU performance to consider when using an instance family as the baseline reference.

## Syntax
<a name="aws-properties-ec2-launchtemplate-cpu-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-ec2-launchtemplate-cpu-syntax.json"></a>

```
{
  "[References](#cfn-ec2-launchtemplate-cpu-references)" : [ Reference, ... ]
}
```

### YAML
<a name="aws-properties-ec2-launchtemplate-cpu-syntax.yaml"></a>

```
  [References](#cfn-ec2-launchtemplate-cpu-references): 
    - Reference
```

## Properties
<a name="aws-properties-ec2-launchtemplate-cpu-properties"></a>

`References`  <a name="cfn-ec2-launchtemplate-cpu-references"></a>
The instance family to use as the baseline reference for CPU performance. All instance types that match your specified attributes are compared against the CPU performance of the referenced instance family, regardless of CPU manufacturer or architecture differences.  
*Required*: No  
*Type*: Array of [Reference](aws-properties-ec2-launchtemplate-reference.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)