These are a lot of slides, but this is a normalized comparision between an Intel Xeon processor (pumped up Pentium 4) to Cell in what's known as a Fourier Fast Transform. At a 256 point FFT each SPE is slightly more powerful than an entire Xeon making Cell as a whole greater than 7x faster than the Intel chip. Under the circumstances of the 16 million point FFT, there's no competition. 100x faster. Xeon ran out of bandwidth and computational resources. Cell kept on going.
