On: SHA-3 Standard [pdf]

[atoponce]

Supposedly. So far, I haven't found a software implementation that is faster than MD5. However, I have found plenty of Skein software implementations that come close to meeting the speed specification.

See http://ae7.st/p/5px. I'm using the reference code at https://github.com/BLAKE2/BLAKE2 for blake2, and https://jxself.org/git/?p=skeinsum.git for skein.