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# MTLArgumentBuffersTier

The values that determine the limits and capabilities of argument buffers.

```
enum MTLArgumentBuffersTier
```

## Overview

See [Improving CPU performance by using argument buffers](/documentation/Metal/improving-cpu-performance-by-using-argument-buffers) for more information about argument buffer tiers, limits, and capabilities. Query the [`argumentBuffersSupport`](/documentation/Metal/MTLDevice/argumentBuffersSupport) property to determine argument buffer tier support for a given device.

## Topics

### Enumeration cases

[`MTLArgumentBuffersTier.tier1`](/documentation/Metal/MTLArgumentBuffersTier/tier1)

Support for tier 1 argument buffers.

[`MTLArgumentBuffersTier.tier2`](/documentation/Metal/MTLArgumentBuffersTier/tier2)

Support for tier 2 argument buffers.


---

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