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# MTLCounter

An individual counter a GPU device lists within one of its counter sets.

```
protocol MTLCounter : NSObjectProtocol, Sendable
```

## Overview

You can determine which counters a GPU supports within a counter set (see [`MTLCounterSet`](/documentation/Metal/MTLCounterSet)) by checking the elements of its [`counters`](/documentation/Metal/MTLCounterSet/counters) property. A counter’s [`name`](/documentation/Metal/MTLCounter/name) property typically matches one of the common counter set names that [`MTLCommonCounter`](/documentation/Metal/MTLCommonCounter) defines. For more information, see [Confirming which counters and counter sets a GPU supports](/documentation/Metal/confirming-which-counters-and-counter-sets-a-gpu-supports).

## Topics

### Identifying a counter

[`name`](/documentation/Metal/MTLCounter/name)

The name of a GPU’s counter instance.


---

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