I just got done loading OS 10.4 on my iMac and thought I'd run Cinebench to see how it compared to my results from OS 10.3.9...
OS 10.3.9 running 2gb of ram
Processor: G5
MHz: 1.8 ghz
Number of CPUs: 1
Operating System: 10.3.9
Graphics Card: GeForce FX 5200
Resolution: 1680 x 1050
Color Depth: Millions
****************************************************
Rendering (Single CPU): 245 CB-CPU
Rendering (Multiple CPU): --- CB-CPU
Shading (CINEMA 4D): 232 CB-GFX
Shading (OpenGL Software Lighting): 638 CB-GFX
Shading (OpenGL Hardware Lighting): 922 CB-GFX
OpenGL Speedup: 3.97
****************************************************
OS 10.4.0 running 2gb of ram
Processor: G5
MHz: 1.8ghz
Number of CPUs: 1
Operating System: 10.4.0
Graphics Card: GeForce FX 5200
Resolution: 1680 x 1050
Color Depth: Millions
****************************************************
Rendering (Single CPU): 165 CB-CPU
Rendering (Multiple CPU): --- CB-CPU
Shading (CINEMA 4D): 192 CB-GFX
Shading (OpenGL Software Lighting): 563 CB-GFX
Shading (OpenGL Hardware Lighting): 865 CB-GFX
OpenGL Speedup: 4.51
****************************************************
OS 10.3.9 running 2gb of ram
Processor: G5
MHz: 1.8 ghz
Number of CPUs: 1
Operating System: 10.3.9
Graphics Card: GeForce FX 5200
Resolution: 1680 x 1050
Color Depth: Millions
****************************************************
Rendering (Single CPU): 245 CB-CPU
Rendering (Multiple CPU): --- CB-CPU
Shading (CINEMA 4D): 232 CB-GFX
Shading (OpenGL Software Lighting): 638 CB-GFX
Shading (OpenGL Hardware Lighting): 922 CB-GFX
OpenGL Speedup: 3.97
****************************************************
OS 10.4.0 running 2gb of ram
Processor: G5
MHz: 1.8ghz
Number of CPUs: 1
Operating System: 10.4.0
Graphics Card: GeForce FX 5200
Resolution: 1680 x 1050
Color Depth: Millions
****************************************************
Rendering (Single CPU): 165 CB-CPU
Rendering (Multiple CPU): --- CB-CPU
Shading (CINEMA 4D): 192 CB-GFX
Shading (OpenGL Software Lighting): 563 CB-GFX
Shading (OpenGL Hardware Lighting): 865 CB-GFX
OpenGL Speedup: 4.51
****************************************************