---
title: preferLowPowerDevice
framework: scenekit
role: symbol
role_heading: Type Property
path: scenekit/scnview/option/preferlowpowerdevice
---

# preferLowPowerDevice

An option for whether to select low-power-usage devices for Metal rendering.

## Declaration

```swift
static let preferLowPowerDevice: SCNView.Option
```

## Discussion

Discussion The value for this key is an NSNumber object containing a Boolean value. SceneKit uses this option when automatically selecting a Metal device on systems with multiple GPUs. If the value is true, SceneKit uses a device with low power usage requirements—for example, the integrated GPU on a MacBook Pro with both integrated and discrete graphics hardware. Leaving this key unspecified is equivalent to setting its value to false. In this case, SceneKit chooses the most capable available Metal device.

## See Also

### View Options

- [preferredDevice](scenekit/scnview/option/preferreddevice.md)
- [preferredRenderingAPI](scenekit/scnview/option/preferredrenderingapi.md)