This is also an excellent test for multi-core systems; the quad core QX6700 holds a commanding lead; however note how well the dual core 1333MHz FSB E6750 does - especially when overclocked!
POV-Ray
POV-Ray also can take full advantage of more than two cores, so the QX6700 once again leads the pack, however, the E6750 does very well in among the other dual core processors.