It's been a while since I compared 7z, and I heard some good things about the latest beta, so I decided to do a few tests:
Test file: 415MB uncompressed SQL Server 2005 backup file (a file that's typical of one that is important to me) 7zip 9.13 beta x64 WinRAR 3.93 x64 WinZIP 12 7z Ultra LZMA 2 threads: 56.2MB in 2:25 7z Ultra LZMA2 4 threads: 56.6MB in 1:13 7z Maximum LZMA2 4 threads: 58.9MB in 1:28 7z Normal LZMA2 4 threads: 61MB in 0:59 7z Fast LZMA2 4 threads: 68.8MB in 0:11 WinRAR Best multi-thread: 68.2MB in 0:57 WinZIP ppmd: 79.6MB in 2:50 Really come a long way. I'm impressed. > -----Original Message----- > From: [email protected] [mailto:hardware- > [email protected]] On Behalf Of maccrawj > Sent: Friday, April 23, 2010 4:22 PM > To: [email protected] > Subject: Re: [H] 7-ZIP Question? > > Well 7z & Zip have supplanted Rar as defacto standards for downloaded > content with Zip as usual the most common. > > If it does Rar, Zip, adds better compressing 7z format, and incorporates all > the positives / none of the negatives you mention then one would have to > question "why use use WinRAR at all?" > > I can think of nothing I had to compromise switching from WinRar to 7Z. > > > On 4/23/2010 1:17 PM, Christopher Fisk wrote: > > On Fri, 23 Apr 2010, Bryan Seitz wrote: > > > >> On Fri, Apr 23, 2010 at 04:04:34PM -0400, Christopher Fisk wrote: > >>> On Fri, 23 Apr 2010, DSinc wrote: > >>> > >>>> TNX Bryan! I'll start to roll it out on the lan! > >>>> For me, 7zip is now a "must have." > >>>> Best, > >>>> Duncan > >>> > >>> Have not used 7 zip much, but I really like winrar. www.rarsoft.com. > >>> Handles just about anything I throw at it including jara jar files, > >>> iso files, bz2, etc. > >> > >> Try it you might switch. I too used WinZip and Winrar before > >> converting. Winrar is also not free. > > > > I'm not sure how you can enhance an application used to decompress > > files really. I want the window to show me the files, I want shell > > integration to extract everything to current folder or to subfolder. I > > do *NOT* want something running all the time like the winzip helper > > thing that goes into the systray, I do not want a wizard that asked 20 > > questions when I try to extract a file. > > > > I'll look at 7zip, but I'm going in very skeptical that it will meet > > my needs any better than winrar does. It will have to do it better > > BTW, I'm not someone to switch to something new unless there is value in > it. > > > > > > Christopher Fisk
