On Thu, Sep 02, 2010 at 03:50:47PM CEST, Jangita <jangita@jangita.com> said: > Hello, > > Difference between ia64 and amd64? I'm moving to servers with larger > memory >4GB so want to move to 64 bit. > ia64 is the archtecture of intel itanium processors. Very unlikely you've got one. amd64 is ia32 with 64 bits extensions from amd that got adopted by Intel. Much more probable. -- Erwan