CPU Intel Atom 64bit
Supporto 64bit per le CPU Intel Atom
http://it.wikipedia.org/wiki/Intel_Atom vedere la tabella alla fine della pagina con tutti i modelli.
If you want to know if it is a 64 bit or 32 bit cpu you can check cat /proc/cpuinfo and look for the flag lm (not lahf_lm that is something completely different)
$ cat /proc/cpuinfo | grep lm
- FW4L - CPU : 2nd Generation Intel® Atom Dual Core D525
This model does not support 64bit OS.
- Mini PC 2014 - CPU : 3rd Generation Intel® Atom Dual Core D2550
This model officially the Cedar Trail does not support 64bit but seems that could support 64bit OS. Unfortunately do not exist any 64bit stable driver to provide.