The same as this Pentium III 450 but 50MHz faster.

The Pentium III 'Katmai' is the first series of the Pentium III and came in speeds ranging from 450 to 600MHz in 50MHz increments. It was succeeded by the Pentium III 'Coppermine'.... > Read more

Just like this one but different sSpec number. This one came as OEM CPU, the SL37C originally was a boxed model (including box and cooler).... > Read more

In reality the first Pentium III CPU's (starting from 450MHz) were just Pentium II's with SSE instructions added and an improvement of the L1 cache controller. In my opinion this would still be a Pentium II and starting from the Pentium III 'Coppermine' a real Pentium III. The Pentium III 'Katmai' 4... > Read more

Just like this Pentium III 667 but then in slot 1 form.

Two things can be noticed about this CPU: one is that it has a big passive heatsink attached. If I remember correctly this CPU was pulled from an HP/Compaq system that used a shroud solution to pull a... > Read more

Just like the 600E but with 133MHz front side bus. The higher front side bus provides more throughput and higher memory bandwidth.... > Read more

... > Read more

... > Read more

Compared to the first generation Katmai CPU's, this Coppermine runs fairly good. A proper improvement over the Pentium II whereas the Katmai didn't improve much.... > Read more

... > Read more

The second highest clocked Katmai processor. It's brother is clocked 50MHz higher.... > Read more

The 600E is equipped with a Coppermine core; a significant improvement, but not as much as the 600EB, over the old Katmai core (The 600 and 600B; the latter uses a 133MHz FSB). The Katmai at 600MHz had a TDP of 42W whereas the Coppermine was satisfied with just 15.8W. Not to mention the cheaper manu... > Read more

... > Read more

... > Read more

... > Read more

A regular, yet nicely performing Intel Pentium III processor. The first Pentium III's were released for the Slot 1 platform just like the Pentium II. Along with a 440BX platform they ran fine but still used the older platform from the Pentium II-era.

This 667MHz really marks the 'new age' for th... > Read more

Being released in October 1999, this CPU was one of the fastest around. Performance wise I guess the 733MHz Pentium III is a little bit faster than it's rival, the AMD Athlon 700 (also October 1999) paired up with AMD's Irongate chipset.... > Read more

Due to the 133MHz FSB this CPU was quite good. The 'EB' mark indicates we are dealing with a 'Coppermine' core. Actually Intel used the 'E' mark for denoting the 256-bit wide cache bus but since all 'Coppermine' cores featured that one can simple say 'E' is the same as 'Coppermine'. The 'B' stands f... > Read more

Just like this one but with different sSpec number.... > Read more

Just like the 900MHz part this CPU also features a 100MHz FSB. In some memory intensive applications the 850MHz part is superseded by the 800MHz 'EB' CPU, which as you've probably guessed already, features the faster 133MHz FSB.... > Read more

The Pentium III came in many variations including the 800EB. The EB model indicates that it is a 133MHz FSB version with Coppermine-core. The 800MHz model is also available with a 100MHz FSB which is usually noted without the EB-suffix.

I have [url=https://thandor.net/object/95]another 800EB[/url... > Read more

Introduced in October 2000. It uses a 100MHz FSB and sometimes it's outperformed by it's 866MHz brother which has a 133MHz FSB. Using Office applications the front side bus won't matter as much compared to games or memory intensive applications.... > Read more

A nice performer for March 2000. It was released a few days after the 1GHz part. Intel quickly launched the, by then unavailable, high-end Pentium 3's under pressure of AMD's 1GHz Athlons. AMD dropped their 900MHz, 950MHz and 1000MHz parts at once in March 2000 to claim the performance crown and to ... > Read more

Introduced in May 2000, two months after the release of the 1GHz Pentium III and a few months before the release of the Pentium 4 'Willamette'.... > Read more

Pentium II's came in the slot-1 packaging and early Pentium III's followed suit. These CPU's were fitted in a larger packaging to make room for external L2-cache that ran at 50% of the CPU clock frequency. At the time it was too expensive to integrate L2-cache inside the CPU-core itself.

As techn... > Read more

.... > Read more

Just like this Pentium III 1000 but a bit older. It has a cC0-core instead of cD0 and the sSpec number is on a bigger black label.... > Read more

I have two other Pentium III 866's: one cC0-stepping with slot 1 packaging and one cC0-stepping with S370 packaging just like this CPU. The only difference is that this one is equipped with the newer cD0 revision cor... > Read more

The Pentium III 1100 is the fastest Pentium III 'Coppermine' that uses a 100MHz FSB. Faster models (1133MHz, and the later Tualatin CPU's) use the faster 133MHz bus. In some situations (for instance when playing games) the 133MHz makes a difference. I guess the 1100MHz didn't sell much and people th... > Read more

The looks of a Pentium III 1000 'Tualatin' but secretly a 'Coppermine' underneath. One give-a-way is the 1.75 vCore it needs .

At one point in time Intel decided to use FC-PGA2 packaging's for their latest Celeron and Pentium III CPU's. I wrote more about FC-PGA2 in the story of [url=https://th... > Read more

Right at the 1GHz barrier! The Intel Pentium III 1000MHz with 133MHz FSB. This one should be interesting against an AMD Athlon 1000MHz . The Intel part will probably win in situations where SSE is utilized because AMD's 'Thunderbird' didn't have SSE implementations. AMD's 'Palomino' core (Athlon 4... > Read more