Wglgears.exe -

A window will appear with three colored gears rotating. The command prompt will show output like:

3047 frames in 5.0 seconds = 609.400 FPS
3022 frames in 5.0 seconds = 604.400 FPS

Higher FPS indicates better OpenGL performance. On modern hardware, expect hundreds or thousands of FPS in this undemanding test. wglgears.exe

Do not double-click the file unless you trust it implicitly. Instead: A window will appear with three colored gears rotating

Enthusiast websites (e.g., Guru3D, TechPowerUp) sometimes distribute wglgears.exe as a portable, no-install benchmark for quick GPU sanity checks. Higher FPS indicates better OpenGL performance