Something looks wrong with those PC Games Hardware benches.

For the system in my sig, 'cept 5850@840/1150 with 10.7 Cats. 1680x1050 No AA.
I get the following rounded average results

Win7x64:
Test A:
Scene 1: 37
Scene 2: 34
Scene 3: 43

Test B: 34

And for Windows XPsp3 DX9:
Test A:
Scene 1: 83
Scene 2: 73
Scene 3: 74

Test B: 40