Futuremark's 3DMark06 is primarily a graphics benchmark, although due to its age and the resolution it uses, with modern hardware the CPU more often becomes the limiting factor. As you can see, the stock X3 720 3DMark06 score is nearly as high as the overclocked X4 9850 score, with only about 200 points difference between them, despite the 700 points less scored by the CPU alone. The overclocked X3 720 score simply trounces all the others, leaping ahead nearly 2000 points over the X4 9850, even though their CPU scores are less than 200 points apart.
3DMark Vantage is Futuremark's latest graphics benchmark, and scores more heavily on raw GPU power rather than relying on the system's CPU. With nVidia graphics cards with CUDA-enabled drivers, the GPU can process like a CPU, and so the CPU scores register extremely high. Here we see the X3 720 at stock speed net the lowest CPU score out of the bunch, yet still manage to outdo if only by a hair, the overclocked X4 9850 in 3DMarks. The weight of the CPU has very little effect on the overall score as evidenced by the less than 200 points separating all the scores.