Re: Intel vs AMD x86-64

Mikael Pettersson
2004-02-18T09:56:54Z

Linus Torvalds writes:
>
> Ok,
> now that Intel has finally come clean about their x86-64 implementation
> (see
>
> http://www.intel.com/technology/64bitextensions/index.htm?iid=techtrends+spotlight_64bit
>
> for full details), can somebody write up a list of differences? I know
> there are people who have had access to the Intel docs for a while now,
> and obviously Intel is too frigging proud to list the differences
> explicitly.

>From what I can see from these docs, Intel's "IA-32e" is very very close
to the natural combination of P4 with AMD64. No hyperlink stuff, but
otherwise the same. The local APIC and performance counters should be
exactly as in P4 :-)

What about naming? IA-64 is taken, AMD64 is too specific, Intel's
"IA-32e" sounds too vague, and I find x86-64 / x86_64 difficult to type.
"x64" perhaps?