Nvidia CUDA - Tesla Benchmarked and Compared
 

Where a GeForce 8800 Ultra needed almost four minutes to finish the task, a Core 2 Extreme QX6850 needed an hour, which is slower than a GeForce 8400 GS! The V8 does a little better but remains far from what high end GPUs can do in a massively parallel application such as this one.

As you may have noticed, performances are almost perfectly scaled when we use several GeForce 8s. On the other hand, this isn’t the case for CPUs. Why this is we will explain in the next pages.

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