Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by user » Fri, 06 Feb 2004 12:23:35


Any fp benchmarks showing Centrino Pentiums
vs other Pentiums / Athlons ?
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by beliavsk » Fri, 06 Feb 2004 23:05:25


I do not know of any, but to me the most important benchmark for a
laptop is how LONG the battery lasts when I am programming -- the only
programs open being the Windows console and an Emacs. Can anyone
suggest a laptop that does well on this "benchmark"? My current laptop
lasts about 2 hours.

 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by David Ha » Fri, 06 Feb 2004 23:56:15


XXXX@XXXXX.COM writes:



Yep, that's where the Centrino is lovely. My last laptop (a mobile P4)
used to last about 2 hours but at the beginning of December I got a
Centrino which lasts about twice that. You really notice too that the
laptop doesn't get hot (which is after all where all the energy goes).

David
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by Herman D. » Sat, 07 Feb 2004 00:25:03

Not much. See: http://www.yqcomputer.com/
It's compared to an Intel P4 by clicking the link: compare performance
on Web page: http://www.yqcomputer.com/ +centrino&
which will take you to the page: http://www.yqcomputer.com/

Skip


-|Any fp benchmarks showing Centrino Pentiums
-|vs other Pentiums / Athlons ?


Herman D. (Skip) Knoble, Research Associate
(a computing professional for 38 years)
Email: XXXX@XXXXX.COM
Web: http://www.yqcomputer.com/
Penn State Information Technology Services
Academic Services and Emerging Technologies
Graduate Education and Research Services
Penn State University
214C Computer Building
University Park, PA 16802-21013
Phone:+1 814 865-0818 Fax:+1 814 863-7049
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by user » Sat, 07 Feb 2004 10:17:51


That's not all. It's not excluded that in floating point tests Centrino is
~1.5 times more powerful than same clock mobile/desktop Pentiums.
Basically, this is Intel's claim, and would be nice if someone confirm that.
Would be great if you or someone else with Centrino run, say,
"real life" www.Polyhedron.com tests to get more solid impression about
performance...
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by Helge Avle » Sat, 07 Feb 2004 17:26:12


XXXX@XXXXX.COM writes:

| That's not all. It's not excluded that in floating point tests Centrino is
| ~1.5 times more powerful than same clock mobile/desktop Pentiums.
| Basically, this is Intel's claim, and would be nice if someone confirm that.
| Would be great if you or someone else with Centrino run, say,
| "real life" www.Polyhedron.com tests to get more solid impression about
| performance...

I can confirm this, but with reservations, because the pentium m has
~1MB of cache, while pentium 4 has ~0.5MB. So on problems that fit
nicely in cache my 1.5GHz Pentium M laptop outperforms my 2.54GHz
desktop system (both are Dell). per Hz my experience is that the
centrino gives from 1.4 to 1.8 times the performance of a Pentium 4.

--
Helge
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by Jan C. Vor » Sat, 07 Feb 2004 18:04:39

> per Hz my experience is that the

That seems to fit nicely with the experience when the Pentium 4 was
introduced - remember that the Pentium M really is a Pentium III at
heart.

Jan
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by Steve Lion » Sun, 08 Feb 2004 11:20:11


I will make the following observations/comments:

1) The processor part of the Centrino marketing name is Pentium-M.
2) Intel Fortran (and C++) 8.0 introduced a new option specifying "compile
for Pentium-M" - /QxB on Windows, -xB on Linux. We suggest you try this to
see if you get better results than by using /QxN or -xN, which would be for
Pentium 4. Sometimes it helps, sometimes it doesn't.

--
Steve Lionel
Software Products Division
Intel Corporation
Nashua, NH

Intel Fortran Support:
http://www.yqcomputer.com/

User communities for Intel Fortran and Visual Fortran:
http://www.yqcomputer.com/
 
 
 

Laptop processor benchmarks: Centrino Pentium M vs Mobile Pentium IV ???

Post by Alex Gibso » Tue, 10 Feb 2004 00:59:55


Only two hours ?

My couple of year old Compaq N400C (p3m 700)
with handle battery usually hits 5 hours, can be stretched
to 6.5 if I don't use windows media player or winamp.
Handle battery adds around a 1KG but
for battery life is well worth it.

Latest Model in the series was N410c.
Compaq/ HP Australia were still selling it a couple of months ago.

Think the NC4000 is similar(around 1.5 kg)

N620 is similar but a bit heavier and doesn't require the docking station
for cdrom / extra batteries (can get multibay batteries as well as handle
batteries.
Could probably push it to 10 hours battey life.

One thing if with newer notebooks if you don't need a wireless connection
be sure to turn it off (or deactivate it) as this will suck battery
like nothing else except maybe video or game playing.

Alex