Notes:
Both Windows and Linux were ran using 16 bit colour depth.
Optimized OpenGL is High settings with Tessellation and Dynamic Lighting turned off.

Windows 98 at 640x480

High OpenGL
928 frames, 29.7 seconds: 31.2 fps
595 frames, 20.3 seconds: 29.3 fps
1482 frames, 24.1 seconds: 61.5 fps
Mean: 40.7 FPS

Medium OpenGL
928 frames, 28.5 seconds: 32.6 fps
595 frames, 19.6 seconds: 30.3 fps
1482 frames, 22.8 seconds: 64.9 fps
Mean: 42.6 FPS

Low OpenGL
928 frames, 18.9 seconds: 49.2 fps
595 frames, 13.0 seconds: 45.9 fps
1482 frames, 21.8 seconds: 67.8 fps
Mean: 54.3 FPS

Optimized OpenGL
928 frames, 20.1 seconds: 46.3 fps
595 frames, 14.0 seconds: 42.5 fps
1482 frames, 23.0 seconds: 64.4 fps
Mean: 51.2 FPS

Linux at 640x480

High OpenGL
928 frames, 31.6 seconds: 29.4 fps
595 frames, 25.1 seconds: 23.7 fps
1482 frames, 32.2 seconds: 46.1 fps
Mean: 33.1 FPS

Medium OpenGL:
928 frames, 26.9 seconds: 34.6 fps
595 frames, 17.8 seconds: 33.6 fps
1482 frames, 30.9 seconds: 48.0 fps
Mean: 38.7 FPS

Low OpenGL:
928 frames, 27.1 fps: 34.2 fps
595 frames, 18.0 fps: 33.0 fps
1482 frames, 30.8 fps: 48.1 fps
Mean: 38.4 FPS

Optimized OpenGL:
928 frames, 27.7 fps: 33.5 fps
595 frames, 18.8 fps: 31.6 fps
1482 frames, 31.6 fps: 46.9 fps
Mean: 37.3 FPS