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Celeron M announced

Wow, a Celeron with potential. Haven't seen one since the Tualatin core. Most of the P4 Celeron's problems are rooted in its lack of/slow cache.

- M4H
 
Originally posted by: xjedimasterx
http://news.google.com/url?ntc=0M4C2&q=http://www.infoworld.com/article/04/01/05/HNceleron_1.html

It's a Pentium M w/ 512k cache instead. IMO, it shouldn't be too shabby of a performer seeing as how the Pentium M disables much of its cache most of the time anyway.

news.google.com rocks my world.



That's the only thing the M has going for it. You knock the cache to 512 and it won't be keeping up with any 2+ P4. The Celeron is meant to be a slower performing "cheap man's" CPU for websurfing and office apps, and that's all this one is. There is no more potential here except extended battery life.
 
That's the only thing the M has going for it. You knock the cache to 512 and it won't be keeping up with any 2+ P4

A 1.30 GHz Pentium M performs like a 1.8-2.0 GHz Northwood, so at 1.20 GHz the Celeron M certainly won't be beating a faster Pentium 4, but I am sure it will provide enough performance for most people.

L2 cache is important, but beyond a certain point throwing more cache into a CPU gives rapidly diminishing performance returns. The Pentium 4 Willamette -> Northwood transition, which doubled the cache of the P4 from 256 to 512 kb of L2, gave between 5-9% performance improvement.

http://www.anandtech.com/cpu/showdoc.html?i=1574&p=13

I would guess that 512KB -> 1MB of L2 cache on the Banias core probably yields similar or less performance gains. There's no way to know of course until benchmarks come out, but I would not expect this chip to be a poor performer.

 
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