Intel Core 2 Duo is better than any that you mentioned. But P4 is better than Celeron anyways. This is of course for laptops and same is the case with PC.Intel Pentium 4-m - First off, make sure that the notebook that you are looking for is in fact a P4-m and not a standard P4 as many notebook manufacturers put in there laptops. The P4-m is identical to the desktop P4, except that it has Enhanced SpeedStep enabled on the core, and runs at lower clock speeds. The CPUs are more expensive as they are specifically chosen out of a group of P4 processors, because of their slightly lower thermal properties, and lower power consumption due to a possibly slightly higher manufacturing process (It is just chance really). The P4-m has 512KB of L2 cache, and runs at speeds of up to 3GHz now, although the faster the P4-m, the higher the power consumption. On battery, the P4-m reverts to a clock speed of 1.2GHz (SpeedStep) unless you require full power, and then you can configure it to retain its Full clock speed. It is not designed as a mobile processor, so it is not IDEAL. It runs quite hot, and guzzles a bit of power

Answered by Ashish Yadav , an ibibo Wizard, at 8:20 PM on June 20, 2008

well Raksha, Intel Core 2 Duo is better than any that you mentioned. But P4 is better than Celeron anyways. This is of course for laptops and same is the case with PC.Intel Pentium 4-m - First off, make sure that the notebook that you are looking for is in fact a P4-m and not a standard P4 as many notebook manufacturers put in there laptops. The P4-m is identical to the desktop P4, except that it has Enhanced SpeedStep enabled on the core, and runs at lower clock speeds. The CPUs are more expensive as they are specifically chosen out of a group of P4 processors, because of their slightly lower thermal properties, and lower power consumption due to a possibly slightly higher manufacturing process (It is just chance really). The P4-m has 512KB of L2 cache, and runs at speeds of up to 3GHz now, although the faster the P4-m, the higher the power consumption. On battery, the P4-m reverts to a clock speed of 1.2GHz (SpeedStep) unless you require full power, and then you can configure it to retain its Full clock speed. It is not designed as a mobile processor, so it is not IDEAL. It runs quite hot, and guzzles a bit of power

Answered by Uttam , an ibibo Master, at 8:02 PM on May 22, 2008

P4 processor is much better than Celeron.
Intel Celeron is based on the P3-m core and the new P4-m core, albeit at reduced L2 cache, and lower performance.

Intel Pentium 4-m - First off, make sure that the notebook that you are looking for is in fact a P4-m and not a standard P4 as many notebook manufacturers put in there laptops. The P4-m is identical to the desktop P4, except that it has Enhanced SpeedStep enabled on the core, and runs at lower clock speeds. The CPUs are more expensive as they are specifically chosen out of a group of P4 processors, because of their slightly lower thermal properties, and lower power consumption due to a possibly slightly higher manufacturing process (It is just chance really). The P4-m has 512KB of L2 cache, and runs at speeds of up to 3GHz now, although the faster the P4-m, the higher the power consumption. On battery, the P4-m reverts to a clock speed of 1.2GHz (SpeedStep) unless you require full power, and then you can configure it to retain its Full clock speed. It is not designed as a mobile processor, so it is not IDEAL. It runs quite hot, and guzzles a bit of power. The Pentium4-m has a maximum gate junction temperature of 135'C, in which case the chip will explode or something - I'm not sure, i don't think anyone has ever got it that high. It will infact reduce clock speed at any temperature over 100'C using the famous Pentium 4 Clock throttling, as it approaches 120'C it will induce CPU wait states (much like those used on early Pentium (1) notebooks) and if the temperature continues to rise, the CPU will simply shut off. However, most notebook manufacturers program their computers to cut once 85'C or so is reached, to avoid the nasty smell of bunring plastic or something worse I assume.

Answered by Sharad Singh , an ibibo Master, at 6:57 PM on May 22, 2008

Hi there

Intel Core 2 Duo is better than any that you mentioned. But P4 is better than Celeron anyways.
8 answer(s) so far.

With its high clock speeds(up to 2.5Ghz), a wide selection of compatible platforms, its Pentium 4 against lower-clock-speed segment (up to 1.8 GHz) of celeron.

Celeron has L2 cache of just 128KB versus Pentium 4's 512 kB.
The P4 design is VERY cache dependant, so when you chop your cache
down to only 128KB as they do with the current Celeron chips,
performance suffers a LOT. What's even worse, doing this puts more
pressure on your memory interface, which is running slower on the Celeron, further hurting performance.

Answered by Reeta K , an ibibo Master, at 11:58 AM on May 22, 2008

With its high clock speeds(up to 2.5Ghz), a wide selection of compatible platforms, its Pentium 4 against lower-clock-speed segment (up to 1.8 GHz) of celeron.

Celeron has L2 cache of just 128KB versus Pentium 4's 512 kB.
The P4 design is VERY cache dependant, so when you chop your cache
down to only 128KB as they do with the current Celeron chips,
performance suffers a LOT. What's even worse, doing this puts more
pressure on your memory interface, which is running slower on the
Celeron, further hurting performance.

Celeron is cheaper thingy competing with AMD.
Pentium by for the best.
Invented by Indian Vinod K Dham at Intel.
Cheers....

Answered by shepherd , an ibibo Master, at 10:10 AM on May 22, 2008

well, Intel Core 2 Duo is better than any that you mentioned. But P4 is better than Celeron anyways.
8 answer(s) so far.

With its high clock speeds(up to 2.5Ghz), a wide selection of compatible platforms, its Pentium 4 against lower-clock-speed segment (up to 1.8 GHz) of celeron.

Celeron has L2 cache of just 128KB versus Pentium 4's 512 kB.
The P4 design is VERY cache dependant, so when you chop your cache
down to only 128KB as they do with the current Celeron chips,
performance suffers a LOT. What's even worse, doing this puts more
pressure on your memory interface, which is running slower on the
Celeron, further hurting performance.

Answered by Saurabh , an ibibo Master, at 9:11 AM on May 22, 2008

well Raksha
P4 processor is much better than Celeron.
Intel Celeron is based on the P3-m core and the new P4-m core, albeit at reduced L2 cache, and lower performance.

Intel Pentium 4-m - First off, make sure that the notebook that you are looking for is in fact a P4-m and not a standard P4 as many notebook manufacturers put in there laptops. The P4-m is identical to the desktop P4, except that it has Enhanced SpeedStep enabled on the core, and runs at lower clock speeds. The CPUs are more expensive as they are specifically chosen out of a group of P4 processors, because of their slightly lower thermal properties, and lower power consumption due to a possibly slightly higher manufacturing process (It is just chance really). The P4-m has 512KB of L2 cache, and runs at speeds of up to 3GHz now, although the faster the P4-m, the higher the power consumption. On battery, the P4-m reverts to a clock speed of 1.2GHz (SpeedStep) unless you require full power, and then you can configure it to retain its Full clock speed. It is not designed as a mobile processor, so it is not IDEAL. It runs quite hot, and guzzles a bit of power. The Pentium4-m has a maximum gate junction temperature of 135'C, in which case the chip will explode or something - I'm not sure, i don't think anyone has ever got it that high. It will infact reduce clock speed at any temperature over 100'C using the famous Pentium 4 Clock throttling, as it approaches 120'C it will induce CPU wait states (much like those used on early Pentium (1) notebooks) and if the temperature continues to rise, the CPU will simply shut off. However, most notebook manufacturers program their computers to cut once 85'C or so is reached, to avoid the nasty smell of bunring plastic or something worse I assume.

Answered by jaivir , an ibibo Master, at 8:37 AM on May 22, 2008

well Raksha,Intel Celeron - I beleive the mobile celeron is based on the P3-m core and the new P4-m core, albeit at reduced L2 cache, and lower performance. At all costs, stay away from a Celeron based notebook. They are horrible. Horrible. Horrible. - did i mention that they are not very good and should be kept away from?
Intel Pentium 4-m - First off, make sure that the notebook that you are looking for is in fact a P4-m and not a standard P4 as many notebook manufacturers put in there laptops. The P4-m is identical to the desktop P4, except that it has Enhanced SpeedStep enabled on the core, and runs at lower clock speeds. The CPUs are more expensive as they are specifically chosen out of a group of P4 processors, because of their slightly lower thermal properties, and lower power consumption due to a possibly slightly higher manufacturing process (It is just chance really). The P4-m has 512KB of L2 cache, and runs at speeds of up to 3GHz now, although the faster the P4-m, the higher the power consumption. On battery, the P4-m reverts to a clock speed of 1.2GHz (SpeedStep) unless you require full power, and then you can configure it to retain its Full clock speed. It is not designed as a mobile processor, so it is not IDEAL. It runs quite hot, and guzzles a bit of power. The Pentium4-m has a maximum gate junction temperature of 135'C, in which case the chip will explode or something - I'm not sure, i don't think anyone has ever got it that high. It will infact reduce clock speed at any temperature over 100'C using the famous Pentium 4 Clock throttling, as it approaches 120'C it will induce CPU wait states (much like those used on early Pentium (1) notebooks) and if the temperature continues to rise, the CPU will simply shut off. However, most notebook manufacturers program their computers to cut once 85'C or so is reached, to avoid the nasty smell of bunring plastic or something worse I assume.

Answered by satyaiitk , an ibibo Master, at 6:49 AM on May 22, 2008

I know the Celeron is worse then the Pentium 4 because of the small cache size, but just how bad is it? I know they overclock like MAD, so I was wondering at what speed celerons compair to pentiums.

Answered by Sudipta Deb , an ibibo Specialist, at 5:31 AM on May 22, 2008