The Computer Language
Benchmarks Game

Intel Fortran versus C gcc fastest programs

Always look at the source code.

These are only the fastest programs. Look at the other programs. They may seem more-like a fair comparison to you.

n-body
source secs mem gz busy cpu load
Intel Fortran 4.22 12 1524 4.34 100% 1% 1% 2%
C gcc 4.30 8 1391 4.32 0% 0% 0% 100%
spectral-norm
source secs mem gz busy cpu load
Intel Fortran 0.72 1,776 638 2.85 100% 100% 99% 99%
C gcc 0.72 1,100 569 2.86 100% 99% 100% 100%
pidigits
source secs mem gz busy cpu load
Intel Fortran 0.74 4,004 981 0.75 0% 0% 100% 1%
C gcc 0.73 2,848 416 0.75 1% 100% 1% 0%
mandelbrot
source secs mem gz busy cpu load
Intel Fortran 1.42 36,184 957 5.63 99% 100% 99% 99%
C gcc 1.27 31,692 1135 5.08 100% 100% 100% 99%
regex-redux
source secs mem gz busy cpu load
Intel Fortran 0.99 176,200 2225 3.06 68% 73% 71% 98%
C gcc 0.80 152,196 1397 2.03 48% 100% 54% 53%
binary-trees
source secs mem gz busy cpu load
Intel Fortran 2.38 133,752 1148 7.45 100% 70% 70% 73%
C gcc 1.79 168,760 809 5.35 64% 64% 71% 100%
fannkuch-redux
source secs mem gz busy cpu load
Intel Fortran 10.16 11,048 1158 40.55 100% 100% 100% 100%
C gcc 7.52 836 910 29.37 99% 100% 93% 99%
fasta
source secs mem gz busy cpu load
Intel Fortran 2.06 12 1351 2.06 0% 0% 0% 100%
C gcc 0.82 2,896 2268 3.26 99% 100% 100% 99%
reverse-complement
source secs mem gz busy cpu load
Intel Fortran 3.90 985,352 1019 4.11 1% 100% 4% 1%
C gcc 0.86 698,264 820 1.27 1% 18% 100% 28%
k-nucleotide
source secs mem gz busy cpu load
Intel Fortran   Make Error
C gcc 3.81 130,112 1506 12.18 54% 87% 79% 100%
Intel Fortran

Intel(R) Fortran Intel(R) 64 Compiler
for applications runn304 Build 20200925_0ing on Intel(R) 64,
Version 19.1.3.304 Build 20200925_000000
Copyright (C) 1985-2020 Intel Corporation. All rights reserved.
FOR NON-COMMERCIAL USE ONLY

C gcc

gcc (Ubuntu 10.2.0-13ubuntu1) 10.2.0