Intel's processor history: the path from the Intel 4004 to the Pentium 4
- 1 Introduction
- 1969/1971: The Intel 4004 created
- 2 1972: The Intel 8008
- 1974: The Intel 8080
- 1976: The Intel 8085 flops
- 3 1978: The Intel 8086: The success story begins
- 1979: The Intel 8088: Step backwards for progress
- 4 1981: Intel cooperates with IBM
- 5 1982: The Intel 80286
- 1985: The Intel 80386: The 32 bit Age
- 6 1989: Intel slimmed down again: The Intel386 SX
- 1989: The Intel486 appears
- 7 1993: The Pentium is coming!
- 8 1995: Intel Pentium Pro
- 1997: Intel introduces MMX
- 9 1997 : Intel's new draft horse: The Pentium II
- 10 1998: Intel's budget CPU: The Celeron
- 11 Continuation: The Celeron
- 12 1999: The Pentium III
- 13 Continuation: Pentium III
- Pentium 4 and Intel's future
Continuation: The Celeron
With the Celeron 766, Intel had reached a limit that made an increase in the FSB inevitable. The multipliers of the Celeron had reached their end with 11.5 x 66 MHz = 766 MHz and the CPU performance was significantly reduced by the slow FSB. That's why Intel increased the FSB from 66 to 100 MHz from the Celeron 800 onwards.
From 1.2 GHz, the switch from Coppermine tothe Tualatin core of the L2 cache increased from 128 to 256KB, which again has a positive effect on performance. The 133 MHz front-side bus remained with the Celeron. It still had to get by with 100 MHz and continued to rely on the somewhat outdated Socket 370. In the meantime, Intel also offers the Celeron Tualatin from 1.0 GHz, although it was originally only introduced with 1.2 GHz.
In the course of the almost four years that the Celeron has under its belt, the manufacturing process has of course also been developed always improved. The Mendocino in PPGA format was still produced in 0.25 µm technology, while the Celeron with coppermine core is already produced in 0.18 µm and the current Celeron with Tualatin core in 0.13 µm technology.
The Celeron reached its peak with the new Tualatin core, which Intel also uses in the latest Pentium III CPUs. Unlike before, Intel is not cutting the L2 cache in the Celeron variant this time, but only the front-side bus, which, unlike the Pentium III, is not 133 MHz but only 100 MHz. In addition, Intel has also switched off the DPL unit in the Celeron Tualatin, but more on this in the Pentium III section.
Intel stayed true to its motto and thus donated the Celeron slimmed down again and againPentium II/III CPUs. That's why we're now taking a closer look at the Pentium III and only then go into more detail about some of the features that the Celeron also has.
On the next page: 1999: The Pentium III