Notable advantage of 64-bit includes larger amounts of memory, performance can benefit from extra storage spaces called registers on processors, and some intense computing tasks run faster.
Linux adherents known to be technical and proficient programmers are champions of 64-bit software. Adobe recent adoption of 64-bit version of Flash Player for Linux points to their agitation. Now they have also stirred-up the necessity for a 64-bit browsers.
Chrome Hits 64-Bit On Linux