Core 2 Duo here...
Normal Result :
65.1546021 FPS
32253 Tris
Octree Result :
103.455444 FPS
16170 Tris
Seems consistent on a couple of tries for each.
Could it be that the dual-core systems giving you slower results simply have slower individual cores than your single-core CPU (assuming the test isn't using more than one processor at a time)?
Normal Result :
65.1546021 FPS
32253 Tris
Octree Result :
103.455444 FPS
16170 Tris
Seems consistent on a couple of tries for each.
Could it be that the dual-core systems giving you slower results simply have slower individual cores than your single-core CPU (assuming the test isn't using more than one processor at a time)?