FFT speed

[Peter Cusack]

How fast can I perform a 1024 point FFT in LabView? I know it's processor speed dependent, the pedants can express the answer in clock cycles, for the rest of us, a time and a reference to the processor speed will do.

[altenbach]

On my 1GHz PIII, a real FFT with 1024 points takes about 68 microseconds using LabVIEW 7.0. YMMV.

[Peter Cusack]

Thanks. It's a starting point. My own coding attempts have yielded results in milliseconds on a 1GHz Pentium machine, which is way too slow fo my application.