With CL!ng, getting all the information and specs about your OpenCL or Metal enabled device just got a lot easier.
Browse device compute capabilities, memory specifications and even get some idea about the OpenCL or Metal performance of your device with build-in test routines for memory bandwidth and practical floating point performance.

Device & compute specifications

Get general information about your OpenCL or Metal enabled device in your computer, wether they are CPU or GPU based. See which OpenCL/Metal version is implemented and supported by your device and get information about its compute capabilities such as number of compute units, clock frequency, support for double precision floating point, etc...

Memory & types specifications

The memory information overview lists specifics about the memory architecture of your OpenCL or Metal device, including detailed information about supported data types and object sizes.

Memory and compute performance

CL!ng uses standard OpenCL APIs to measure memory copy bandwidth from host-to-device, device-to-host and device-to-device.

The OpenCL Mandelbrot calculation routines measure floating point performance for both single and double precision in scalar as well as vector variants (when supported by the device).
The Metal Mandelbrot calculation routines measure floating point performance for single precision in scalar as well as vector variants.

Benchmark & Share
Run all performance and bandwidth tests and anonymously upload and share results with other CL!ng users.


CL!ng supports OpenCL compatible devices from Intel, AMD (including older ATI models) and nVidia implementing OpenCL version 1.0 or higher.
CL!ng supports Metal compatible devices as of macOS GPU Family 1

OpenCL and the OpenCL logo are trademarks of Apple Inc.

What’s New

Version 1.11

- Universal binary
- recognises Apple Silicon
- support for some new Metal properties in macOS BigSur

Ratings and Reviews

4.6 out of 5
91 Ratings

91 Ratings

warmsound13 ,


It has a lot of benchmarks for memory, processors and graphics performance.

A uset ,

Test w/o share

I loathe being asked to share each test

App Privacy

The developer, Bart Vanhaeren, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.