Quote:
Originally Posted by TBGBe
Is that why the ultra settings say (memory req)  |
oh it takes memory, but not 3 GB :-). Easily 1-1.3 GB is taken by Ultra settings in 7zip... But thats far cry from what 32bit can address.
Big difference is number of registers, which is double than 32bit systems, so this is where 5%-10% in compression comes from. However there are drawbacks as shown by extraction times.
So basically perfect archiver would use 64bit for compression and 32bit for extraction :-)