FurMark is a free GPU stress test and graphics benchmark program for Windows and Linux.
FurMark 2 is the successor to FurMark 1. It is an intensive GPU stress test that supports 32-bit and 64-bit on both platforms and serves as a quick OpenGL and Vulkan graphics benchmark with online scores. It features improved command line support and is built with GeeXLab. The program is simple to use.

| FurMark — Quick Facts | |
|---|---|
| Name | FurMark |
| Maker | Geeks3D |
| Type | GPU stress test / benchmark |
| License | Freeware |
| OS | Windows XP → 11 (works on modern Windows 10/11 builds in 2025) |
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