: The 64-bit version can utilize compression dictionaries of up to 1 GB , allowing for much tighter compression on large, similar files.
While both versions are identical in terms of the user interface, their performance varies based on your hardware: WinRAR 5.00 Final released WinRAR 5.01 -32bit - 64bit -full version
: Features a new recovery record function based on Reed-Solomon error correction, which can fix up to 9 times more data damage than older versions. : The 64-bit version can utilize compression dictionaries
: Increased the maximum file path length within archives from 260 to 2048 characters , resolving many extraction errors for deeply nested folders. 32-bit vs. 64-bit: Which Should You Use? WinRAR 5.01 -32bit - 64bit -full version