The hardware and OS might make a difference. FreeCAD’s user interface is written using QT, And then inside QT is a 3D engine that runs on OpenGL. Performance will depend on how well your platform runs OpenGL. Fusion runs on the native graphics system of either Windows “DirectX” or Mac “Metal”. Fusion’s performance depend on how wel you system supports DirectX or Metal. Aple macOS depricated OpenGL years go in favor of Metal. Both Windows and Linux support OpenGL better on Nvidia GPUs than on other hardware
Performance of both is poor in a virtual machine unless the VM supports direct GPU access; many of them do not. So raw performance is complicated and depends on what GPU and OS you have. > On Oct 12, 2026, at 2:10 PM, Billy Huddleston via Emc-users > <[email protected]> wrote: > > I'm going to reiterate this. FreeCAD is different than it use to be. What > was the last version you used? I personally find Fusion harder to use now. > But, That's because I'm use to FreeCAD's work flow. It's going to be the same > coming from Fusion to FreeCAD. > > And no, you don't have to be a dedicated open source idealist to use FreeCAD. > I use it because to run Fusion, I have to run Windows or use a VM, and it > sucks under a VM, and I personally > detest windows above Windows 7. (And even then preferred Linux) _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
