How Baldur's Gate 3 runs on the GeForce GTX 1660 Super
Our estimate puts the GeForce GTX 1660 Super at about 41 fps on High at 1080p in Baldur's Gate 3, which means it runs acceptably. On Low the same card manages about 77 fps, and on Ultra about 24.
The graphics card is the limit here, so lowering the resolution or the quality preset is what raises your frame rate.
For a steady 60 fps, our estimate says: 1080p: Low (about 77 fps); 1440p: under 60 fps at every preset, best is 56 fps on Low; 4K: under 60 fps at every preset, best is 31 fps on Low.