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 02 May 2007
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 Dr. Adrian Wong
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Test System And Methodology

Processor Intel Core 2 Duo E6600 (2.4GHz)
Motherboard MSI P965 Neo
Memory Two Mushkin 1GB XP2-5300 DDR2 Memory Modules
Graphics Card NVIDIA GeForce 7900 GT (256MB)
Hard Drive 400GB Seagate Barracuda 7200.10 (SATA)
700GB
Seagate Barracuda 7200.10 (SATA)
Operating System Microsoft Windows Vista

To reduce the effect of the hard drive read-write delays on the results, the test files were placed on one hard drive and compression performed on the second hard drive. A special partition was created on both drives to ensure that only the outermost tracks are used for the tests.

A Seiko WO73-4000 stopwatch was used to time all compression test runs, even if the compression software comes with its own timer. It starts from the moment the compression job begins and ends when the compressed file is fully written to the destination partition.

 

Test Settings

In this comparison guide, we are going to run three different kinds of tests :

  • Fastest compression
  • Default compression
  • Best compression

The test results will help you decide which data compressor is best for you. Some people may prefer very quick compression while others may prefer to wait for the smallest file size possible. And there may be those who prefer to leave it at the default setting. Okay, maybe they just don't know better.

 
Fastest
Compression
Default
Compression
Best
Compression
7-Zip
Compression Level : Fastest
Compression Method : LZMA
Dictionary Size : 4MB
Word Size : 32
Solid Archive
Multi-Threading
Compression Level : Normal
Compression Method : LZMA
Dictionary Size : 4MB
Word Size : 32
Solid Archive
Multi-Threading
Compression Level : Ultra
Compression Method : LZMA
Dictionary Size : 64MB
Word Size : 64
Solid Archive
Multi-Threading
ARJ32
arj32 a -m4
arj32 a -m1
arj32 a -m1 -jm
bzip2
bzip2 -z -1 -v
bzip2 -z -5 -v
bzip2 -z -9 -v
gzip
gzip -1 -v
gzip -5 -v
gzip -9 -v
SBC Archiver
sbc c -m1
sbc c -m2
sbc c -m3
Squeez
Format : SQX Version 2.0
Compression Rate : Fast
Dictionary Size : 4MB
Multimedia Compression On
EXE Compression On
Solid Archive
Format : SQX Version 2.0
Compression Rate : Normal
Dictionary Size : 4MB
Multimedia Compression On
EXE Compression On
Solid Archive
Format : SQX Version 2.0
Compression Rate : Ultra
Dictionary Size : 4MB
Multimedia Compression On
EXE Compression On
Solid Archive
StuffIt Deluxe
StuffIt X format
Method 1 : Fastest Compression
Memory Value : 15
Optimizers On
Block Mode On
Redundancy Off
Don't Compress JPEG
StuffIt X format
Method 3 : Best Size/Speed
Memory Value : 21
Optimizers On
Block Mode On
Redundancy Off
Compress JPEG Using Fastest Compression
StuffIt X format
Method 5 : Chooses Method By File Type
Memory Value : 23
Optimizers On
Block Mode On
Redundancy Off
Compress JPEG Creating Smaller Archives
WinAce
Compression : Super Fast
Dictionary : 4096KB
Ace 2.0 Compression
Solid Archive
Compression : Normal
Dictionary : 4096KB
Ace 2.0 Compression
Solid Archive
Compression : Maximum
Dictionary : 4096KB
Ace 2.0 Compression
Solid Archive
WinRAR
Compression Method : Fastest
Solid Archive
Text Compression : Auto
Audio Compression : Auto
True Color Compression : Auto
Dictionary Size : 4096 KB
Enable delta compression
Compression Method : Fastest
Solid Archive
Text Compression : Auto
Audio Compression : Auto
True Color Compression : Auto
Dictionary Size : 4096 KB
Enable delta compression
Compression Method : Best
Solid Archive
Text Compression : Auto
Audio Compression : Auto
True Color Compression : Auto
Dictionary Size : 4096 KB
Enable delta compression
WinRK
Profile : Fastest (rolz3)
Use SMP encoding and decoding
SMP worker thread count : 2
Profile : Normal (rolz3)
Use SMP encoding and decoding
SMP worker thread count : 2
Profile : Best asymmetric (rolz3)
Use SMP encoding and decoding
SMP worker thread count : 2
WinZip
Compression : Super Fast
Compression : Enhanced Deflate
Compression : Optimize For Maximum Compression
 

 

The Results

 
Fastest
Compression
Default
Compression
Best
Compression
Aggregated
Results
Audio Files - WAV
(Highly Compressible)
Coming Soon!
Audio Files - MP3
(Poorly Compressible)
Coming Soon!
Documents
Coming Soon!
E-Books
Coming Soon!
Movies - DivX
Coming Soon!
Movies - MPEG
Coming Soon!
Pictures - PSD
(Highly Compressible)
Coming Soon!
Pictures - JPEG
( Poorly Compressible)
Coming Soon!
Aggregrated Results
(Combination Of All Filesets)
Coming Soon!


<<< Investigating Their Performance, The Benchmark Fileset : Previous Page   |   Next Page : Fast: Audio Files - WAV (Highly Compressible) >>>

 

 
   
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