Usually 7Z and ARC format compresses better than RAR, that compresses better than BZ2 any of that compress much more better than ZIP, which is faster. On you can find some other PAQ-like algorithms (and some different algorithms) on the top of the chart, but in all cases the speed is the big issue.įor many types of data applying such powerful compression may end in a very little advantage, so you should try some most common compression algorithm if you want to keep compression time reasonable. ZPAQ is faster, but still out of the range of something useful for compressing many GB of data. PAQ is the champion in terms of compression, but in any case seems too slow for you. KGB archiver and WinRK uses modified old versions of PAQ, while PeaZip uses reasonably recent version of that algorithm. Click to expand.Definition of best mainly depends on you needs, as for what I can see you are searching for maximum compression rate at reasonable speed, otherwise bandwith you save would not balance the extra computing time cost.
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