# X86_64

> 64-bit Intel/AMD simulator architecture. Deprecated and will be removed in a future Unity version; use ARM64 instead.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor](/engine/6000.6/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

> **Warning:**
>
> **Deprecated.** X86\_64 iOS/tvOS Simulator architecture is deprecated and will be removed in a future Unity version. Switch to ARM64 in Player Settings.

```csharp
X86_64 = 0
```