To be more precise, "AMD64" in this context is the same as "x86-64" (or "x64"), http://en.wikipedia.org/wiki/X86-64 http://en.wikipedia.org/wiki/X86-64 - origin

To be more precise, "AMD64" in this context is the same as "x86-64" (or "x64"), http://en.wikipedia.org/wiki/X86-64 http://en.wikipedia.org/wiki/X86-64 - originally created by AMD and later also licensed back to Intel for use in all the later Pentium and Core CPUs. It should not be confused with "IA64", aka the "Intel Itanium 64" architecture, which was Intel's mostly-dud non-x86 compatible attempt at 64 bit architecture, a clean break from the x86 legacy. http://en.wikipedia.org/wiki/Ia64#Architecture http://en.wikipedia.org/wiki/Ia64#Architecture