---
title: MTLFeatureSet.iOS_GPUFamily4_v1
framework: metal
role: symbol
role_heading: Case
path: metal/mtlfeatureset/ios_gpufamily4_v1
---

# MTLFeatureSet.iOS_GPUFamily4_v1

The GPU family 4, version 1 feature set for iOS.

## Declaration

```swift
case iOS_GPUFamily4_v1
```

## Mentioned in

Detecting GPU features and Metal software versions

## Discussion

Discussion This feature set corresponds with Apple A11 devices running iOS 11.

## See Also

### iOS GPU family 4

- [MTLFeatureSet.iOS_GPUFamily4_v2](metal/mtlfeatureset/ios_gpufamily4_v2.md)