![winrar vs 7zip winrar vs 7zip](https://i.ytimg.com/vi/MDFoHqeptlw/maxresdefault.jpg)
The default size of the Rar compression dictionary is 32MB. the less space it will take up once compressed although this only applies to large files (>1GB for backup purposes). What this means: the larger the dictionary, which is used to store common parts of a file to be compressed, the better the compression will be, i.e. įor starters, Rar5 increases the size of the compression dictionary up to 1GB (in the 64bit version). With the same factors (therefore changing only the algorithm) from some tests, 7z seems to have a slight advantage (5%) over Rar. The performance of the compression/extraction varies, however, depending on the file that we are going to use, the dictionary chosen, and the machine on which we are operating. In addition, Winrar seems to be the only one able to preserve (when unpacking) the original dates of previously compressed folders. In general, both Winrar and 7z have a of 30-40% higher performance than that of the simple zip. The default compression is Rar4, you can select version 5 of the compression algorithm by opening the rar file management panel (with the right click on the file to compress>Add to archive). Rar has been gradually improved over the years and has recently arrived at version Rar5. While the program 7z (always for zip creation purposes but with 7z extension) the most efficient LZMA and LZMA2. The default one used by Windows (for example) is the classic DEFLATE, not very performing. To create a zipper file you need to choose an algorithm. The first and the second one are free, the latter is not and its developer is the owner (the program that manages this format is WinRar ). Zipper, Rar, GZip, BZip2, 7z, Tar, Tar.gz …Īmong the most popular on Windows we have: 7z, Zip and Rar. There are many algorithms and therefore compression formats: Often we don’t even pay attention to it, but when we click on a ‘ zipper ’ file, we are us ing sophisticated compression algorithms that over the years keep getting better and better.