I ran all three test on the desktop in my sig.
Xbench:
Results 117.66
System Info
Xbench Version 1.2
System Version 10.4.3 (8F46)
Physical RAM 4096 MB
Model PowerMac7,3
Processor PowerPC G5x2 @ 2.70 GHz
L1 Cache 64K (instruction), 32K (data)
L2 Cache 512K @ 2.70 GHz
Bus Frequency 1 GHz
Video Card GeForce 6800 Ultra
Drive Type HD
CPU Test 133.91
GCD Loop 135.73 7.15 Mops/sec
Floating Point Basic 136.23 3.24 Gflop/sec
vecLib FFT 136.13 4.49 Gflop/sec
Floating Point Library 127.92 22.28 Mops/sec
Thread Test 137.80
Computation 139.79 2.83 Mops/sec, 4 threads
Lock Contention 135.87 5.85 Mlocks/sec, 4 threads
Memory Test 106.18
System 103.85
Allocate 139.65 512.85 Kalloc/sec
Fill 133.13 6472.91 MB/sec
Copy 70.34 1452.86 MB/sec
Stream 108.62
Copy 107.24 2215.00 MB/sec [G5]
Scale 107.64 2223.77 MB/sec [G5]
Add 110.16 2346.74 MB/sec [G5]
Triad 109.51 2342.61 MB/sec [G5]
Quartz Graphics Test 133.97
Line 133.90 8.91 Klines/sec [50% alpha]
Rectangle 132.20 39.47 Krects/sec [50% alpha]
Circle 134.45 10.96 Kcircles/sec [50% alpha]
Bezier 129.42 3.26 Kbeziers/sec [50% alpha]
Text 140.38 8.78 Kchars/sec
OpenGL Graphics Test 149.17
Spinning Squares 149.17 189.23 frames/sec
User Interface Test 125.97
Elements 125.97 578.14 refresh/sec
Disk Test 75.50
Sequential 147.06
Uncached Write 199.56 122.53 MB/sec [4K blocks]
Uncached Write 182.43 103.22 MB/sec [256K blocks]
Uncached Read 85.46 25.01 MB/sec [4K blocks]
Uncached Read 199.73 100.38 MB/sec [256K blocks]
Random 50.79
Uncached Write 18.70 1.98 MB/sec [4K blocks]
Uncached Write 117.38 37.58 MB/sec [256K blocks]
Uncached Read 100.82 0.71 MB/sec [4K blocks]
Uncached Read 146.30 27.15 MB/sec [256K blocks]
CINEBENCH 2003 v1
****************************************************
Tester : Nikore
Processor : PowerMac G5
MHz : 2.7 GHz
Number of CPUs : 2
Operating System : 10.4.3
Graphics Card : 6800 Ultra
Resolution : 1600x1200
Color Depth : Milions
****************************************************
Rendering (Single CPU): 383 CB-CPU
Rendering (Multiple CPU): 666 CB-CPU
Multiprocessor Speedup: 1.74
Shading (CINEMA 4D) : 364 CB-GFX
Shading (OpenGL Software Lighting) : 1059 CB-GFX
Shading (OpenGL Hardware Lighting) : 1631 CB-GFX
OpenGL Speedup: 4.48
****************************************************
And lastly photoshop test (my stopwatch/photoshop's timer)
42.6/49.2
Conclusion: Quad > *