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633 Celeron Processor equals Pentium wha

By skolodziejski ·
This question is very basic because I am not any kind of expert but I'd appreciate a reply.

I purchased a Compaq Presario 2605 EZ Series 633m Celeron processor about 18 mos. ago from Costco the warehouse place...what does this equal Pentium wise?

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633 Celeron Processor equals Pentium wha

by James R Linn In reply to 633 Celeron Processor equ ...

The Celeron is just a different flavour of Pentium.

The difference is that the Celeron doesn't have the level of on board cache and a math co-processor function on the processor. So it will be a little slower at highly mathmatical calculations, and not as efficient at processing large amounts of data.

But it is still a Pentium.

James

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633 Celeron Processor equals Pentium wha

by skolodziejski In reply to 633 Celeron Processor equ ...

The question was auto-closed by TechRepublic

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633 Celeron Processor equals Pentium wha

by maxwell edison In reply to 633 Celeron Processor equ ...

In summary, the main differences between Celerons and Pentiums are in the areas of bus speed and L2 cache features. Both Pentium-II's and -III's ship with 512kB of secondary (L2) CPU instruction cache. This allows the CPU to store recently used instructions close by and is responsible for much of their high performance.

The Celerons that Intel first introduced as a low-cost CPU alternative (266 & 300MHz versions) were basically just Pentium-II's without any L2 cache at all. This deficiency really punished Celeron performance when compared to competitive AMD and Cyrix chips. In response, subsequent Celeron versions (300A and up) were provided with 128kB of L2 cache. Though only one-quarter the size of the Pentium cache, it was built to run at the full speed of the respective CPU, rather than at half-speed as in the Pentiums. Due to its higher manufacturing cost and technical issues, the larger Pentium cache memory has always been set to run at only half the speed of the CPU itself. For a full-speed L2 in a Pentium design, you need to get into Intel's (much more expensive) Xeon line.

What Intel plays down-- but nearly everyone knows-- is that the full-speed, quarter-size Celeron cache gives them almost the same performance asthe half-speed, full-size cache gives Pentiums. Thus you'll find that, for most applications, Celerons rated at the same MHz will equal or better an equivalent Pentium-II, for a much lower price.

For example:

Celeron @ 466MHz x 128kB L2 @466MHz =>
Pentium-II @ 450MHz x 512kB L2 @ 225MHz

Pentium-III's are given an added boost with an inherently faster system bus speed (100MHz vs. 66MHz for the Celerons) and Intel's new SSE 3D instruction set. This combination of hardware andfirmware enhancements gives Pentium-III's a significant edge over the Celeron's smaller cache and slower bus.


Maxwell

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633 Celeron Processor equals Pentium wha

by skolodziejski In reply to 633 Celeron Processor equ ...

The question was auto-closed by TechRepublic

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633 Celeron Processor equals Pentium wha

by TheChas In reply to 633 Celeron Processor equ ...

One other difference between the Celeron and Pentium family, is that the Celeron processors below 833MHz only support a 66MHZ system/memory bus speed.
Whereas the Pentium IIs support 100MHz bus speed (unless a slower bus is required to acheive cpu clock speed) Some of the PIII's support the even higher bus speed of the RDRAM memory.

In reality, the actual performance difference will vary by application. The more bus and memory traffic, the greater the Pentium advantage.
And, some motherboards have enough other bottlenecks in the system that you will see very little difference except on benchmark tests.

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633 Celeron Processor equals Pentium wha

by skolodziejski In reply to 633 Celeron Processor equ ...

The question was auto-closed by TechRepublic

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633 Celeron Processor equals Pentium wha

by purplebook In reply to 633 Celeron Processor equ ...

I was curious about this too. But then I went to: http://whatis.techtarget.com/ and looked it up.

Intel address the Socket 370 Celerons to be slightly less than the Pentium III's. Being like TheChas and others have stated about the bus speeds and the L2 cache on the CPU. More detailed information can be found on this site.

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633 Celeron Processor equals Pentium wha

by skolodziejski In reply to 633 Celeron Processor equ ...

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633 Celeron Processor equals Pentium wha

by skolodziejski In reply to 633 Celeron Processor equ ...

This question was auto closed due to inactivity

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