KGB Archiver 2 tests

Test data: Calgary Corpus

FormatSizeRatio
Uncompressed data

3068KB

100.0%

ZIP, Deflate64 Maximum compression

966KB

31.5%

CAB, Maximum compression

844KB

27.5%

SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression

813KB

26.5%

7zip, ultra compression, solid archive, dictionary 96MB, word size 273B801KB26.1%
RAR, maximum compression, solid archive737KB24.0%
SITX, method 5, level 16, memory 23, optimizers on, block mode on, don't storing thumbnails730KB23.8%
KGB2, PAQ6, normal compression701KB22.9%
KGB1, normal compression694KB22.6%
KGB2, PAQ7, good compression608KB19.8%

KGB Archiver 1.x tests

FormatSizeRatio
Uncompressed text data

19900KB

100%

ZIP, maximum compression

4922KB

24,7%
ZIP, Deflate64, maximum compression4865KB24,4%
CAB, LZX - maximum compression3559KB17,9%
BZIP2, dictionary 900KB3399KB17,1%
RAR, maximum compression, solid archive3220KB16,2%
UHA, maximum compression, dictionary 32MB, multimedia compression3171KB15,9%
7zip, ultra compression, solid archive, dictionary 48MB, word size 255B2726KB13,7%
SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression2631KB13,2%
KGB, normal compression2339KB11,8%
KGB, medium compression*1543KB7,8%

 

FormatSizeRatio
JPEG images

8096KB

100%

ZIP, maximum compression

7582KB

93,7%
ZIP, Deflate64, maximum compression7579KB93,6%
7zip, ultra compression, solid archive, dictionary 48MB, word size 255B7549KB93,2%
BZIP2, dictionary 900KB7541KB93,1%
CAB, LZX - maximum compression7536KB93,1%
RAR, maximum compression, solid archive7528KB93,0%
UHA, maximum compression, dictionary 32MB, multimedia compression7486KB92,5%
KGB, normal compression7429KB91,8%
KGB, medium compression7406KB91,5%
KGB, extremal compression7367KB91,0%
SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression7364KB91,0%
KGB, maximum compression7349KB90,8%

 

FormatSizeRatio
Mp3 sound

11895KB

100%

ZIP, maximum compression

11650KB

97,9%
ZIP, Deflate64, maximum compression11623KB97,7%
RAR, maximum compression, solid archive11609KB97,6%
7zip, ultra compression, solid archive, dictionary 48MB, word size 255B11606KB97,6%
BZIP2, dictionary 900KB11590KB97,4%
UHA, maximum compression, dictionary 32MB, multimedia compression11579KB97,3%
CAB, LZX - maximum compression11562KB97,2%
KGB, normal compression11496KB96,6%
SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression11455KB96,3%
KGB, medium compression*11361KB95,5%

 

FormatSizeRatio
Applications

3732KB

100%

ZIP, maximum compression

1373KB

36,8%
ZIP, Deflate64, maximum compression1358KB36,4%
BZIP2, dictionary 900KB1334KB35,7%
RAR, maximum compression, solid archive992KB26,6%
CAB, LZX - maximum compression985KB26,4%
UHA, maximum compression, dictionary 32MB, multimedia compression921KB24,7%
KGB, normal compression920KB24,7%
SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression897KB24,0%
7zip, ultra compression, solid archive, dictionary 48MB, word size 255B866KB23,2%
KGB, medium compression*839KB22,5%

 

FormatSizeRatio
MPEG movies

12077KB

100%

ZIP, maximum compression

11319KB

93,7%
ZIP, Deflate64, maximum compression11277KB93,4%
BZIP2, dictionary 900KB11156KB92,4%
CAB, LZX - maximum compression11107KB92,0%
RAR, maximum compression, solid archive11005KB91,1%
UHA, maximum compression, dictionary 32MB, multimedia compression11003KB91,1%
7zip, ultra compression, solid archive, dictionary 48MB, word size 255B10955KB90,7%
KGB, normal compression10872KB90,0%
KGB, medium compression10807KB89,5%
SQX2.0, ultra compression, dictionary 32MB, solid archive, multimedia & EXE compression10792KB89,4%
KGB, extremal compression*10674KB88,4%

* - KGB Archiver has higher compression levels

  
 

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