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FFT Performance: CPU vs <strong>GPU</strong> (8-Series)<br />
GFLOPS<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
1D Fast Fourier Transform<br />
On CUDA<br />
Transform Size (Power of 2)<br />
Source for Intel data : http://www.intel.com/cd/software/products/asmo-na/eng/266852.htm<br />
NVIDIA <strong>Tesla</strong> C870 <strong>GPU</strong> (8-series <strong>GPU</strong>)<br />
Quad-Core Intel Xeon CPU 5400 Series 3.0GHz,<br />
In-place, complex, single precision<br />
CUFFT 2.x<br />
CUFFT 1.1<br />
INTEL MKL 10.0<br />
FFTW 3.x<br />
• Intel FFT numbers<br />
calculated by repeating<br />
same FFT plan<br />
• Real FFT performance is<br />
~10 GFlops<br />
13
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