Ah, so that is you.. can you do us a favour and remove your garbage issues from github?
I'm not sure who would be proud of that or even admit to it to be honest.. (
https://github.com/gapcoin/gapcoin/issues/8)
To me its akin to pissing on a famous painting.
Different hardware favors different functions. SHA-512 is generally faster on 64-bit processors, SHA-256 faster on 32-bit processors. (Try the command line command!
openssl speed sha256 sha512
SHA-512 also has over SHA-256 collision resistance, a term that in cryptography has a very narrow meaning. SHA-256 claims 128-bit collision resistance, SHA-512 claims 256-bit. If or when a practical quantum computer is built, we will need the 256-bit collision resistance.
By that reasoning, since X11 contains eleven 512bit wide hashfunctions, it should be 11 times better than SHA512? lol