Performance

We compared 7-Zip with WinRAR 5.20.

FILE SETS: Mozilla Firefox 34.0.5 for Windows and Google Earth 6.2.2.6613 for Windows.

Archiver Mozilla Firefox Google Earth
65 files
85 280 391 bytes
483 files
110 700 519 bytes
Compressed size Ratio Compressed size Ratio
7-Zip 9.35
-mx
39 357 375 100% 15 964 369 100%
WinRAR 5.20
-m5 -s -ma5 -md128m
41 789 543 106% 17 035 432 107%

Compression ratio results are very dependent upon the data used for the tests. 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 most of other zip compatible programs.