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Prime95 · 2011-07-04, 18:02

Just got numbers for the 2K FFT:

SSE2: 100 iters in 1.110 ms
AVX: 100 iters in 0.682 ms

I'm not sure if these numbers will extrapolate to large FFTs. These small FFTs operate completely in the L1 cache.

2011-07-04, 18:02	#4
Prime95 P90 years forever! Aug 2002 Yeehaw, FL 11×673 Posts	Just got numbers for the 2K FFT: SSE2: 100 iters in 1.110 ms AVX: 100 iters in 0.682 ms I'm not sure if these numbers will extrapolate to large FFTs. These small FFTs operate completely in the L1 cache.