Logo benchFFT is a program to compare FFT implementations. It benchmarks the speed and accuracy of over 40 programs in both C and Fortran. You can download it and run it yourself on your own machine and compiler, or view results sent in by users from a large number of machines. benchFFT benchmarks both real and complex transforms in one, two, and three dimensions.

Current Version:   2.0

License Type:   Free for Non-Commercial Use

Home Site:

Source Code Availability:

Yes (from Home Site)

Available Binary Packages:

  • Debian Package:   No
  • RedHat RPM Package:   No
  • Other Packages:   Yes, from Home Site

Targeted Platforms:

Any platform with at least an ANSI C compiler. A Fortran compiler is required to benchmark Fortran FFTs. Precompiled binaries are also available for some machines.

Software/Hardware Requirements:

ANSI C compiler (except where precompiled binaries are available).

Other Links:

Mailing Lists/USENET News Groups:


User Comments:

  • "I think that you are doing a great service for heavy FFT users like myself."
  • "I would like to congratulate you for your excellent work on benchmarking the fastest FFT routines available in the world."
  • "I've gotten a lot out of your FFT benchmark web page for a while now. I want you guys to know how much your efforts are appreciated."

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