Laptop processor differences

[Mayfriday0529]

Good Website explaining the differences between the current laptop processors out there?
A year ago i bought a Dell laptop and it had a Celeron 2.4 now everything is like Mobile processor with weird numbers.
I need a budget laptop, hopefully mid-range in weight, i have been looking at Toshiba, Dell, Acer and IBM.

But i seen on them Pentium M, Celeron M, and Sempron processor.

Acer seems to use Sempron a lot, they look like nice laptops.

 

[unfalliblekrutch]

If you can afford a Pentium M, then you can also afford a Turion. IMHO, those are the only two you should be looking at if you want good performance AND good battery life.

The celeron-M has performance VERY similar to a Pentium M clock-for-clock. However, it is clocked much lower (~1.4ghz) and does not have enhanced speed step

The semprons will have powernow! technology enabled, however, performance may be hit and miss(depending on your needs).

 

[simms]

P-M standard proc now, has full speed step which leads to better battery life.
Celerons are never that good but are used for budget applications.
Semprons are AMD's Cellys/P-Ms, and Turion 64s are apparantly similar as Sonoma, the updated Centrino.

There are new Yonahs coming out Jan 06 and Merom in Q3 06, Followed by Centrino Duo in 07 for high end consumer.

That's the rough of it.

 

[unfalliblekrutch]

sonoma is the platform, they are still P-m processors

 

[Mayfriday0529]

Originally posted by: simms
P-M standard proc now, has full speed step which leads to better battery life.
Celerons are never that good but are used for budget applications.
Semprons are AMD's Cellys/P-Ms, and Turion 64s are apparantly similar as Sonoma, the updated Centrino.

There are new Yonahs coming out Jan 06 and Merom in Q3 06, Followed by Centrino Duo in 07 for high end consumer.

That's the rough of it.

I read somewhere online yesterday that Yonahs are available through dell already.

thanks for the input guys.

I think i might have to wait in order to afford a Pentium M.

 

[tallman45]

Turion 64's are 90nm and draw very little juice plus are 64 bit OS ready

Stay away from Celerons or even Semprons.

 

[Ionizer86]

Originally posted by: tallman45
Turion 64's are 90nm and draw very little juice plus are 64 bit OS ready

Stay away from Celerons or even Semprons.

The 90nm mobile Semprons are 25W TDP and just about as good as Turion MT's batterywise. They have less cache so they aren't as fast. But in any case, they're better than the 35W Turion ML's. Semprons are fine and dandy.

I think battery efficiency goes something like this, worst to best:
P-M Dothan > P-M Dothan on 533 bus (Sonoma) > Turion MT = 90nm Mobile Sempron > Turion ML > Celeron M Dothan.

 

[tallman45]

Originally posted by: Ionizer86

Originally posted by: tallman45
Turion 64's are 90nm and draw very little juice plus are 64 bit OS ready

Stay away from Celerons or even Semprons.

The 90nm mobile Semprons are 25W TDP and just about as good as Turion MT's batterywise. They have less cache so they aren't as fast. But in any case, they're better than the 35W Turion ML's. Semprons are fine and dandy.

I think battery efficiency goes something like this, worst to best:
P-M Dothan > P-M Dothan on 533 bus (Sonoma) > Turion MT = 90nm Mobile Sempron > Turion ML > Celeron M Dothan.

Your right, about the actual battery draw of the CPU, but the slight savings in power is not worth the performance hit of the Semprons small cache. Remember Laptops have much slower memory (in most cases PC2700) and definately slower HDD (4200 or 5400rpm) which magnifies the smaller cache liability much larger than if it were in a desktop system.

In the end, to do the same amount of processing the Sempron would end up using more power due to its lack of ability to keep much more data in cache, it must constantly be moving data in and out of memory and retrieving it from disk.

The Acer Sempron based laptops come with less capacity batteries, the Acer Aspires come with 4 cell in Semprons, 8 cell in Turions.