32 vs 64 RAM

root@debian32:/etc# ps v $(pidof init vi bash)
  PID TTY      STAT   TIME  MAJFL   TRS   DRS   RSS %MEM COMMAND
    1 ?        Ss     0:01     36  1214  4209  3840  3.0 /sbin/init
  295 ttyS0    T      0:00      0  2260  6223  5632  4.5 vi protocols
  247 ttyS0    S      0:00     11  1056  5219  4364  3.4 -bash
root@debian32:/etc# free -h
             total       used       free     shared    buffers     cached
Mem:          121M        51M        70M       4.2M       7.2M        28M

root@debian64:/etc# ps v $(pidof init vi bash)
  PID TTY      STAT   TIME  MAJFL   TRS   DRS   RSS %MEM COMMAND
    1 ?        Ss     0:00     36  1157 27474  4456  3.6 /sbin/init
  254 ttyS0    T      0:00     22  2062 28133  6336  5.1 vi protocols
  259 ttyS0    S      0:00      0   966 21973  4576  3.7 -bash
root@debian64:/etc# free -h
             total       used       free     shared    buffers     cached
Mem:          120M        58M        61M       4.2M       7.0M        27M