FendeR` wrote:You can still use WinRAR for as long as you want without buying it, and it also supports zip files and others.
7-zip.org wrote:Compression ratio
Compression ratio results are very dependent upon the data used for the tests. We compared 7-Zip with some of the leading archivers: WinRAR 3.10, WinAce 2.3, CABARC 1.0, PKZIP 2.50.
FILE SET: The GIMP 1.2.4 for Windows after full installation (127 subfolders, 1304 files totaling 27,128,826 bytes). The GIMP is the GNU Image Manipulation Program. It can be downloaded from www.gimp.org.
Archiver Compressed size Ratio
7-Zip (7z format) 5445402 100%
WinRAR 3.10 6004155 110%
WinAce 2.3 6242424 115%
CABARC 1.0 6455327 119%
7-Zip (zip format) 9461621 174%
PKZIP 2.50 9842800 181%
Usually 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than other zip compatible programs.
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