When you have multiple companies operating in the same product category each wants to claim that their widget is faster than or better than the completion for one reason or another. This was the case when NVIDIA crafted its GPUs to run applications that were before that point only able to run on a CPU.
Developers have claimed that the GPU is as much as 100x faster in some applications that the CPU. NVIDIA says that Intel has unveiled a paper at ISCA in France called "Debunking the 100x GPU vs. CPU Myth."
The catch is in debunking the 100x myth in Intel's mind; the company admitted that the NVIDIA GTX 280 GPU was 14x faster in the benchmarks it ran than its own processor. Intel didn't say specifically which benchmarks it ran to arrive at its conclusion.