Pentium 4 Optimization Complimenting icc 5.0

[Florian Weimer]

Joe Buck <jbuck@synopsys.COM> writes:

>> Not just "tuned for p3" -- the P4 is about 20% slower across the
>> board when similar clock speeds are compared.  The P4 architecture
>> team inside Intel has taken quite a lot of heat for this.
>
> ... unless you can get all the pipelines set up just right with DSP-like
> code with completely predictable control flow, in which case the P4 flies.

... and even beats the Itanium in many cases.  Alas, the limited
address range makes the Pentium 4 unsuitable for real work.