On Friday February 20, 2004 "Timothy J. Miller" <tj.miller@xxxxxxxxxxxxxxx> wrote: > Question re: the AMD line of Processors, I currently am considering > updgrading a machine and am looking at the AMD Processors. Is there a > way to tell which are 64bit and which are 32bit? For example, is the > AMD Athlon XP a 64 bit processor or a 32bit? Tim, Duron, Athlon, Athlon XP, Athlon MP = 32-bit Athlon 64, Athlon 64FX, Opteron = 64-bit There are some exceptions, but in general you can execute both 32-bit and 64-bit binaries under AMD's x86-64 architecture. With all due respect, if you are asking this question, I don't think you should be thinking about upgrading to 64-bits just yet. --Doc Savage Fairview Heights, IL