Processor Advise?

Hi there

Could anyone tell me the difference between these processors.(in laptops)

Intel Pentium 4 650 processor running at 3.4ghz
and a
Intel Pentium M 780 running at 2.26ghz

Whats the actual difference in speed/power.
Battery life.

Thanks in advance

Jamie

The Pentium 4 is a desktop CPU.

The Pentium M is both faster and uses less power.

The numbers (650/780) are relative performance ratings.

Jamie wrote:

> Hi there
>
> Could anyone tell me the difference between these processors.(in laptops)
>
> Intel Pentium 4 650 processor running at 3.4ghz
> and a
> Intel Pentium M 780 running at 2.26ghz
>
> Whats the actual difference in speed/power.
> Battery life.
>
> Thanks in advance
>
> Jamie
>
>

Barry Watzman wrote:
> The Pentium 4 is a desktop CPU.
>
> The Pentium M is both faster and uses less power.
>

But there is a Mobile Pentium 4 and a Pentium 4 M and they are not the
same. The second one is part of Centrino chip set and uses less power.

Ian Singer
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>Intel Pentium 4 650 processor running at 3.4ghz
>and a
>Intel Pentium M 780 running at 2.26ghz


>Whats the actual difference in speed/power

Another thing also the pentium 4 generates so much heat and the pentium
M does not.
Hp Pavillion series had some of their high end desktop replacements
system using that Pentium 4 chip and to me its uncomfortable to use
after half and hour.
Meanwhile the units equipped with the Pentium M 780 runs really cool
its comfortable to use your unit for several hours.

Ian Singer wrote:
>
>
> Barry Watzman wrote:
>> The Pentium 4 is a desktop CPU.
>>
>> The Pentium M is both faster and uses less power.
>>
>
> But there is a Mobile Pentium 4 and a Pentium 4 M and they are not the
> same. The second one is part of Centrino chip set and uses less power.
>
> Ian Singer

OK, AFIK there is no Pentium 4 M; it is a Pentium M (or Centrino if it
has the Centrino package) and the specs you quoted refer to that chip.
The Mobile Pentium 4 is a lower-voltage version of the Pentium 4 desktop
chip.

Barry is entirely correct.

Q

Thanks for the advice

But if you were to benchmark these two processors
which one would be faster..

"Roy" <> wrote in message
news: oups.com...
> >Intel Pentium 4 650 processor running at 3.4ghz
>>and a
>>Intel Pentium M 780 running at 2.26ghz
>
>
>>Whats the actual difference in speed/power
>
> Another thing also the pentium 4 generates so much heat and the pentium
> M does not.
> Hp Pavillion series had some of their high end desktop replacements
> system using that Pentium 4 chip and to me its uncomfortable to use
> after half and hour.
> Meanwhile the units equipped with the Pentium M 780 runs really cool
> its comfortable to use your unit for several hours.
>

>But if you were to benchmark these two processors
>which one would be faster..

The one with the higher clock speed is faster...i.e 3.4 ghz,

Roy wrote:
>> But if you were to benchmark these two processors
>> which one would be faster..
>
> The one with the higher clock speed is faster...i.e 3.4 ghz,
>

No, it is not necessarily faster. Benchmarks on the Pentium M show
equivalence at about 2x the processor speed for P4 chips.

Q

Quaoar <> wrote:
: Roy wrote:
: >> But if you were to benchmark these two processors
: >> which one would be faster..
: >
: > The one with the higher clock speed is faster...i.e 3.4 ghz,
: >

: No, it is not necessarily faster. Benchmarks on the Pentium M show
: equivalence at about 2x the processor speed for P4 chips.

Yep. On my new Core Duo Dell laptop, doing a single-thread
CPU-intense task (RAW image conversion), I compared my 1.8GHZ Core Duo
against a 2.66GHZ Pentium 4 Desktop. Core Duo was about 30% faster,
equivalent in this one (crude) benchmark to about a 3.5GHZ Pentium 4.

Andrew
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>No, it is not necessarily faster. Benchmarks on the Pentium M show
: equivalence at about 2x the processor speed for P4 chips.

Were you able to see the comparison between the Pentium M 780 rated
at 2.26 ghz with P4 rated at 3.4 ghz?
or you were just generalizing the difference between the generic
types of pentium M chip with P4 chip...

>Yep. On my new Core Duo Dell laptop, doing a single-thread
>CPU-intense task (RAW image conversion), I compared my 1.8GHZ Core Duo
>against a 2.66GHZ Pentium 4 Desktop. Core Duo was about 30% faster,
>equivalent in this one (crude) benchmark to about a 3.5GHZ Pentium

It should be
Simple arithmetic shows ...a dual core processor had two processors in
one chip so 1.8 x 2= 3.6 ghz, should be faster than 2.66ghz pentium 4
and somewhat similar to 3.5 ghz pentium 4