---
title: MTLFeatureSet.iOS_GPUFamily3_v4
framework: metal
role: symbol
role_heading: Case
path: metal/mtlfeatureset/ios_gpufamily3_v4
---

# MTLFeatureSet.iOS_GPUFamily3_v4

The GPU family 3, version 4 feature set for iOS.

## Declaration

```swift
case iOS_GPUFamily3_v4
```

## Discussion

Discussion This feature set corresponds with Apple A9 devices running iOS 12.

## See Also

### iOS GPU family 3

- [MTLFeatureSet.iOS_GPUFamily3_v3](metal/mtlfeatureset/ios_gpufamily3_v3.md)
- [MTLFeatureSet.iOS_GPUFamily3_v2](metal/mtlfeatureset/ios_gpufamily3_v2.md)
- [MTLFeatureSet.iOS_GPUFamily3_v1](metal/mtlfeatureset/ios_gpufamily3_v1.md)