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Intel's processor history: the path from the Intel 4004 to the Pentium 4

Intel's processor history: the path from the Intel 4004 to the Pentium 4

Continuation: Pentium III

But Intel came up with a new core for the Pentium III, the Tualatin. The only difference between the Tualatin and its predecessor, the Coppermine, was the refined manufacturing technology, which could be changed from 0.18µm to 0.13µm, and the construction material, which has now been completely converted to copper. Intel delivers the Tualatin with both 256KB L2 cache and 512KB for server operation. To distinguish the server version from the desktop version, Intel simply added the '-S' appendix to the processor name. The Pentium III Tualatin ranges from 1133 - 1400 MHz. Since the core tension was lowered again, it mustMainboard deliver a VCore of 1.45 volts so that it does not run on old boards. Intel therefore introduced B-stepping in its own i815 chipset, which is also backwards compatible with older Socket 370 CPUs. When choosing a cooler, a special Tualatin version has to be used or the retaining clip of an old cooler has to be bent. The Tualatin uses a heat spreader, which is supposed to transfer the heat better to the heat sink through a larger surface. But this heat spreader increases the height of the processor by almost 2mm, so that old coolers can no longer be attached to the base even with high pressure. Because of the newly introduced heat spreader, the format is now also called 'FC-PGA2'. The Tualatin's front-side bus is only 133 MHz.

Intelium III>

Another magic word of Tualatin is 'Data Prefetch Logic' (DPL). This DPL unit tries to predict which data will be required by the processor next and reads this into the L2 cache beforehand. If the DPL unit is correctly positioned, the data does not first have to take the slow route via the main memory, but can be read directly from the L2 cache. Since the L2 cache in the Tualatin is accessed with full processor clock, this access is much faster than the slow main memory, which is only addressed at 133 MHz. If the DPL unit makes a mistake and reads incorrect data, there is no disadvantage; the CPU simply reacts as if the DPL unit were not there and reads the data from the main memory as usual. But now againback to the Celeron with Tualatin core. What exactly distinguishes it from its big brother, the Pentium III Tualatin? On the one hand, that would be the reduced FSB of 100 instead of 133 MHz and, on the other hand, precisely this DPL unit that was deactivated in the Celeron by Intel.

All Pentium III models that Intel has ever installed Market
Clock frequency Front Side Bus Multi L2 cache L2 cache clock Format 450 MHz 100 MHz 4.5 512 K 225 MHz SECC2 500 MHz 100 MHz 5.0 512K 250 MHz SECC2 500 MHz 100 MHz 5.0 256K 500 MHz FC-PGA 533B MHz 133 MHz 4.0 512K 267 MHz SECC2 533EB MHz 133 MHz 4.0 256K 533 MHz FC-PGA 550 MHz 100 MHz 5.5 512K 275 MHz SECC2 550 MHz 100 MHz 5.5 256K 550 MHz FC-PGA 600 MHz 100 MHz 6.0 512K 300 MHz SECC2 600 MHz 100 MHz 6.0 512K 300 MHz FC-PGA 600B MHz 133 MHz 4.5 512K 300 MHz SECC2 600B MHz 133 MHz 4.5 512K 300 MHz FC-PGA 600E MHz 100 MHz 6.0 256K 600 MHz SECC2 600E MHz 100 MHz 6.0 256K 600 MHz FC-PGA 600EB MHz 133 MHz 4.5 256K 600 MHz SECC2 600EB MHz 133 MHz 4.5 256K 600 MHz FC-PGA 650 MHz 100 MHz 6.5 256K 650 MHz SECC2 650 MHz 100 MHz 6.5 256K 650 MHz FC-PGA 667 MHz 133 MHz 5.0 256K 667 MHz SECC2 667 MHz 133 MHz 5.0 256K 667 MHz FC-PGA 700 MHz 100 MHz 7.0 256K 700 MHz SECC2 700 MHz 100 MHz 7.0 256K 700 MHz FC-PGA 733 MHz 133 MHz 5.5 256K 733 MHz SECC2 733 MHz 133 MHz 5.5 256K 733 MHz FC-PGA750 MHz 100 MHz 7.5 256K 750 MHz SECC2 750 MHz 100 MHz 7.5 256K 750 MHz FC-PGA 800 MHz 100 MHz 8.0 256K 800 MHz SECC2 800 MHz 100 MHz 8.0 256K 800 MHz FC-PGA 800EB MHz 133 MHz 6.0 256K 800 MHz SECC2 800EB MHz 133 MHz 6.0 256K 800 MHz FC-PGA 850 MHz 100 MHz 8.5 256K 850 MHz FC-PGA 850 MHz 100 MHz 8.5 256K 850 MHz SECC2 866 MHz 133 MHz 6.5 256K 866 MHz FC-PGA 866 MHz 133 MHz 6.5 256K 866 MHz SECC2 900 MHz 100 MHz 9.0 256K 900 MHz FC-PGA 933 MHz 133 MHz 7.0 256K 933 MHz FC-PGA 933 MHz 133 MHz 7.0 256K 933 MHz SECC2 1 GHz 133 MHz 7.5 256K 1 GHz SECC2 1 GHz 100 MHz 10.0 256K 1 GHz SECC2 1 GHz 133 MHz 7.5 256K 1 GHz FC-PGA 1.1 GHz 100 MHz 11 256K 1.1 GHz FC-PGA 1.133 GHz 133 MHz 8.5 256K 1.133 GHz FC-PGA2 1.133 GHz-S 133 MHz 8.5 512K 1.133 GHz FC-PGA2 1.20 GHz 133 MHz 9.0 256K 1.20 GHz FC-PGA2 1.266 GHz-S 133 MHz 9.5 512K 1.266 GHz FC-PGA2 1.40 GHz-S 133 MHz 10.5 512K 1.40 GHz FC-PGA2
Legend about the additions selected by Intel of Pentium III CPUs
Appendix Meaning B These CPUs work with a front-side bus of 133 MHz E These CPus are manufactured using 0.18µm technology and the L2 cache is addressed with full processor clock

Pentium 4 and Intel's future

As already announced in the introduction, we will publish another article on ComputerBase.de in the next few dayspublish, which will deal with the latest processors from Intel. For this reason, we have left out the Pentium 4 and Intel's future plans in this article, as we want to go into this matter in detail in our review. If you want to find out more about the Pentium 4, its new features and how it fared in comparison to other processors in our benchmark course, you shouldn't miss our upcoming review in the next few days.

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