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# MTLStorageMode.managed

The CPU and GPU may maintain separate copies of the resource, and any changes need to be explicitly synchronized.

```
case managed
```

## Discussion

On Intel-based Mac computers, this is the default storage mode for [`MTLTexture`](/documentation/Metal/MTLTexture) objects. In iOS and tvOS, the managed storage mode isn’t available. With managed storage, you synchronize changes between the CPU and GPU manually. For instructions and examples of resource synchronization, see [Synchronizing a managed resource in macOS](/documentation/Metal/synchronizing-a-managed-resource-in-macos).

For more guidance on how to choose storage modes, see [Setting resource storage modes](/documentation/Metal/setting-resource-storage-modes).

---

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