This isn't real world, but it's useful to see: http://benchmarksgame.alioth.debian.org/u64q/compare.php?lang=ghc&lang2=gcc http://benchmarksgame.alioth.debian.

This isn't real world, but it's useful to see: http://benchmarksgame.alioth.debian.org/u64q/compare.php?lang=ghc&lang2=gcc http://benchmarksgame.alioth.debian.org/u64q/compare.php?lan... 2-6x slower, more memory, roughly same amount of code.