FurMark stresses graphics cards and benchmarks GPU performance on Windows and Linux.

FurMark is intended for gamers and PC builders who need to check a graphics card’s cooling and stability, especially after installing a new card or changing its clock settings. It applies a sustained, demanding graphics workload so overheating, instability, or problems handling power may become apparent. Because this load is heavier than most games, the test is best suited to users who can watch temperatures while it runs.

Testing cooling and stability

The core stress test renders a demanding 3D scene that keeps the GPU at full load. This makes FurMark useful for observing how the card behaves under extended pressure, rather than relying only on ordinary gameplay. A short initial run while watching the temperature readout is a practical way to begin; stop the test if the GPU overheats or visual artifacts appear.

FurMark is a GPU-focused utility, not a general system stress test. Its results do not establish how the processor or other components perform, and the intensity of its workload should not be treated as a direct representation of typical game use. Laptops with weak cooling or small power adapters are poor candidates for this kind of sustained load, as are systems whose temperatures cannot be monitored during testing.

Benchmarks, graphics APIs, and memory

Alongside stress testing, FurMark provides quick OpenGL and Vulkan graphics benchmarks. Presets cover 1080p, 1440p, ultrawide 3440×1440, and 4K, producing scores that can be compared online. Using a preset gives users a defined resolution for a run, which is helpful when checking performance under a repeatable benchmark setting.

The VRAM test fills a selected amount of video memory, up to 32 GB. This offers a separate way to put pressure on graphics memory rather than concentrating only on the rendered scene. Command-line options support scripted runs with presets and test options, making the program usable for repeatable checks without relying solely on manual interaction.

FurMark 2 is built on the GeeXLab engine and runs on Windows and Linux. The Windows release supports 32-bit and 64-bit systems, and the program is freeware. For a test session, FurMark should be run only on hardware that can be monitored, since its workload can generate more heat than everyday graphics applications.

Monitoring and practical use

GPU-Z and GPU Shark are bundled to help monitor clocks, temperatures, and GPU load. Keeping this information visible during a stress test lets the user track how the card responds as the workload continues. If temperatures approach the card’s limit, or if the image shows artifacts, the run should be stopped rather than left unattended.

FurMark is developed by Geeks3D (JeGX). FurMark 2 is the current version, while the older FurMark 1 continues to be maintained alongside it. Together, the stress test, benchmarks, memory test, and monitoring tools provide several ways to examine a graphics card, but each run still requires attention to temperature and stability.