[VictorS]

Все, нашел нормальное сравнение архиваторов: http://www.maximumcompression.com/

Цитата: Name Best parameters Compressed (bytes) Compress (%) Bits per (b/B) File type : English text (1995 CIA World Fact Book) # of files to compress in this test : 1 Total File Size (bytes) : 2,988,578 WinRK 3.0.3 PWCM 912MB Dict 330115 88.95 0.8837 7-Zip 4.43b -m0=ppmd:o=20:mem=26 442703 85.19 1.1851 WinRAR 3.61 -ep1 -m5 -mdA -mc22:70t+ 443607 85.16 1.1875 File type : Large traffic log file of a popular website # of files to compress in this test : 1 Total File Size (bytes) : 20,617,071 WinRK 3.0.3 PWCM 912MB 271227 98.68 0.1052 7-Zip 4.43b -t7z -m0=ppmd:o=26:mem=29 515865 97.50 0.2002 WinRAR 3.61 -ep1 -m5 -mdA -mc25:128t+ 579766 97.19 0.2250 File type : Acrobat Reader 5.0 executable (AcroRd32.exe). # of files to compress in this test : 1 Total File Size (bytes) : 3,870,784 WinRK 3.0.3 PWCM 912MB Dict 896000 76.85 1.8518 7-Zip 4.43b -m0=BCJ2 -m1=LZMA:d=23:fb=64:a=2:lc=7:mf=bt3 -m2=LZMA:d=18:fb=66:a=2:lc=8:lp=2:mf=bt2 -m3=LZMA:d=18:fb=81:a=2:lc=0:lp=2:mf=bt2 -mb0:1 -mb0s1:2 -mb0s2:3 1260730 67.43 2.6056 WinRAR 3.61 -ep1 -m5 -mdG -mc19:48t+ 1284388 66.82 2.6545 File type : JPG image (1152x864 pixels / 16.7 million colors) # of files to compress in this test : 1 Total File Size (bytes) : 842,468 STUFFIT 9.0 JPEG 638518 24.21 6.0633 WinRK 3.0.3 PWCM 912MB BS=22 812556 3.55 7.7160 7-Zip 4.43b -m0=lzma:a=1:d=0:lc=8:LP0:PB0:mf=bt2 831554 1.30 7.8964 WinRAR 3.61 -ep1 -m5 -mdA -mc2:128t+ 839213 0.39 7.9691 File type : Occupational Health and Safety; MS Word file # of files to compress in this test : 1 Total File Size (bytes) : 4,168,192 PAQ8I -6 553039 86.73 1.0614 WinRK 3.0.3 PWCM 912MB Dict 687654 83.50 1.3198 7-Zip 4.43b -m0=lzma:a=2:d=26:fb=222:lc=8:LP0:PB1:mf=bt3 -mmc=132 768344 81.57 1.4747 WinRAR 3.61 -ep1 -m5 -mdG -mc19:48t+ 782015 81.24 1.5009

Цитата: File type : Multiple file types (46 in total) # of files to compress in this test : 510 Total File Size (bytes) : 316.355.757 Average File Size (bytes) : 620,305 Largest File (bytes) : 18,403,071 Smallest File (bytes) : 3,554 Program Switches used Tarred Compressed Compression Comp time Decomp time Efficiency WinRK 3.0.3 Maximum N 64217766 79.70 30603 0 30603 WinRK 3.0.3 High N 68947835 78.21 6317 3961 10525 7-Zip 4.43b Ultra solid LZMA 64Mb N 87247354 72.42 357 17 4288 7-Zip 4.43b Norm solid LZMA 6Mb ws=32 N 89011186 71.86 265 16 3850 7-Zip 4.43b Max PPMD 64Mb ws=16 N 96810552 69.40 190 208 6406 WinRAR 3.61 Best solid 4096Kb N 86760246 72.58 174 53 1983 WinRAR 3.61 Good solid 4096Mb N 87175203 72.44 157 46 1871 WinRAR 3.61 Normal solid 4096Mb N 90542375 71.38 153 10 2622

Цитата: - Normally I would expect 7-Zip to outperform WinRAR, but in this case I suspect WinRAR beats 7-Zip because there are many multimedia files (wav,bmp) which can be handled by WinRAR's multimedia filter. 7-Zip still lacks such a filter. I included multimedia files because many games are distributed in compressed form (games typically have lots of bmp and wav-like files).

Добавлено через 5 минут
Судя по тесту WinRAR выигрывает у 7-Zip и по скорости архивирования (почти в 2 раза) и немного по объему, но проигрывает по скорости распаковки непрерывного архива (почти в 3 раза).