---
title: prf_frequency_max_hz
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.0+]
path: kernel/clock_frequency_info_t/1553699-prf_frequency_max_hz
---

# prf_frequency_max_hz

## Declaration

```occ
unsigned long long prf_frequency_max_hz;
```