IBM laptop

[Lennart Sorensen]

On Mon, Jan 16, 2006 at 03:36:42PM -0500, William Park wrote:
> On Mon, Jan 16, 2006 at 02:42:34PM -0500, Paul Mora wrote:
> > Thinkpad T42 (2373-R94)
> > CPU: Intel Pentium M 1.6GHz
> 
> Just out of curiosity... how does PentiumM/1.6GHz compare with
> P4/1.6GHz?  Are they the same, except for the power consumption?

The PentiumM 1.6GHz is on average about the speed of a 3.0 to 3.2ghz P4,
while using maybe 1/4 to 1/3 the power.  It does depend on the task.
There are some tasks the P4 is really good at, and a lot of tasks the P4
is very very bad at.  A pentium M compares very well with an Athlon 64.
The 64bit versions of the Pentium M based chips like the Intel Core and
Core Duo will on most benchmarks be within 10% of the same speed AMD.
The pentium 4 is usually just way behind.  The future processors from
intel are all based on the Pentium M but with updated chipsets (badly
needed for the Pentium M) with dual channel memory and faster busses,
and SSE3 and other such nice things.  The P4 on the other hand is
history, with just a few of its features being added to the new chips.
The netburst design is certainly gone.

Len Sorensen
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