UE5 for M1 Apple Silicon

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199 
Compatibility Notes

Unreal Editor

As of late 2021, Unreal Editor does not support the ARM64 architecture used by M1 Macs and newer. Instead, it relies on the Rosetta2 translator.

Future versions of Unreal Engine will introduce direct support for M1 Macs, but in the meantime, you should expect a performance impact when running Unreal Editor on M1 Macs and newer.

Unreal Engine Projects

Although Unreal Editor currently runs with Rosetta2, Unreal Engine can output packaged builds for projects with support for ARM64.

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detail from:

https://portal.productboard.com/epicgames/1-unreal-engine-public-roadmap/c/810-unreal-editor-native-support-on-apple-silicon-experimental?utm_medium=social&utm_source=portal_share

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