7z
Intel Core i7-2600 testing with a ASUS P8H67-M PRO and Intel 2nd Generation Core Family IGP on Ubuntu 14.04 via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1503113-SO-7Z715601624.
7-Zip Compression
Compress Speed Test
Phoronix Test Suite v10.8.4