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FurMark

Free GPU stress test and OpenGL/Vulkan benchmark for Windows and Linux.

FreeBenchmark and stress test tools
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About FurMark

FurMark from Geeks3D is one of the best-known graphics card stress tests. It renders a deliberately heavy furry-donut scene that pushes a GPU to near-maximum load, which makes it a quick way to check whether an overclock is stable, whether cooling keeps temperatures in check and whether a power supply copes. FurMark 2 is the current version: it runs on Windows (32- and 64-bit) and Linux, including ARM64 builds, adds a Vulkan test alongside OpenGL, and has better command-line control for scripted runs. Scores can be submitted online for comparison. The original FurMark 1 is still maintained for Windows. Both are free. FurMark is a synthetic load rather than a game-like benchmark, so its scores say little about real gaming performance, and its extreme load can run hotter than any game; card makers ship rebranded editions such as MSI Kombustor. There is no macOS version.

Best for: PC builders and overclockers checking GPU stability and cooling quickly.

Pros and cons

What works

  • Free and quick to run
  • Very heavy GPU load exposes unstable overclocks and cooling
  • Windows and Linux builds, including ARM64 Linux
  • Command-line support for scripted tests

Why people leave

  • Synthetic load that doesn't reflect real gaming performance
  • No macOS version
  • Tests only the GPU, not CPU or memory

Top FurMark alternatives

See all 2
  1. 1OCCT logo
    OCCT

    Tests GPU, CPU, memory and power supply in one app with live monitoring and error detection.

    66.5
  2. 23DMark logo
    3DMark

    Game-like benchmarks and stress tests whose scores compare directly with other systems.

    62.6

Why people left FurMark

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FurMark: common questions

Is FurMark free?

Yes, FurMark is free to use.

Is FurMark open source?

No, FurMark is not open source.

What platforms does FurMark run on?

FurMark is available for Windows and Linux.

What are the best alternatives to FurMark?

The highest-ranked FurMark alternatives right now are OCCT and 3DMark. See the full ranked list for pricing, platforms and verified facts.

See all 2 FurMark alternatives