intel core 2 duo

[Les Mikesell]

On Sat, 2006-09-30 at 10:10, Phil Meyer wrote:
> >
> > What balderdash.  Prove it or shut up.  Show that 64 bit performance of the
> > Intel Core 2 Duo is half that of 32 bit performance or stop spreading FUD.
> >   
> You will please notice, Mr. Troll, that the original question was about 
> Core 2 Duo.
> My 'claims' are:
> There are no benefits to running intel CPUs (other than Itanium) in 
> 64bit mode.  (other than extreme memory requirements which do not impact 
> today's laptops)
> There are definite benefits to running AMD 64bit CPUs in 64bit mode.

Can you describe what the ia32 kernel does and why it is faster
than x86 in some benchmarks?

> Again, just for the fun of it, lets ask Dell, the largest purveyor of 
> intel based platforms if it sells a Core 2 Duo laptop with Windows XP 
> Professional x64 Edition.

> I come up with a blank.  How about you?

I'd expect windows to be different.  Intel seems to be
saying the enabling EMT64 increases performance for linux
here:
http://www.intel.com/cd/ids/developer/asmo-na/eng/182333.htm

-- 
  Les Mikesell
   lesmikesell at gmail.com