Is my i7 920 Intel processor considered ia64 or x64?

Solution 1:

ia64 is a reference to the relative flop that is Itanium.

The i7's use x64, aka: amd64 or x86-64, or Intel 64 (EM64T). They all refer to essentially compatible 64-bit extensions. For more info on those, check here

Solution 2:

x64

ia64 refers to Itanium based designs and their brethren.

Solution 3:

x64. ia64 is the Itanium architecture which is found mostly on enterprise class servers.

Solution 4:

In layman terms, current itanium is IA64. It can only run 64 bit. I7 is x86-64, can run both.