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Intel's 15 Most Unforgettable x86 CPUs

The Pentium III Hits 1 GHz

The Pentium III Coppermine was the first commercial x86 processor from Intel to attain a clock speed of 1 GHz; a 1.13 GHz version was even released, but was quickly taken off the market because it was unstable. This new version of the Pentium III improved the Level 2 cache—now on-die. It was faster than the 512 KB external cache on the first model and was touted as a feature able to speed up the Internet experience. It was released in three versions: server (Xeon), entry-level (Celeron), and mobile (with the first version of SpeedStep).

Code nameCoppermine
Date released1999
Architecture32 bits
Data bus64 bits
Address bus32 bits
Maximum memory4 GB
L1 cache16 KB + 16 KB
L2 cacheinternal, 256 KB (CPU frequency)
Clock frequency500–1,133 MHz
FSB100-133 MHz
FPUbuilt in
SIMDMMX (SSE)
Fabrication process180 nm
Number of transistors28.1 million
Power consumption25-35 W
Voltage1.6 V, 1.8 V
Die surface area106 mm²
ConnectorSlot 1-Socket 370 FCPGA

A slightly improved version (Tualatin), with more L2 cache (512 KB) and centering on a 130 nm process, was released in 2002. Essentially intended for servers (PIII-S) and mobile devices, it was less common in consumer-level machines.

  • Arkz
    great article with only a few slight errors (like saying the core2duo has 1-4 cores... i don't think there's a 1 cored version lol)

    Looking forward to the AMD article.
    Reply
  • aleluja
    To correct you. Core 2 Duo has ONLY 2 cores, not more, not less.
    Core 2 Quad, has 4 cores and Core Solo has 1 core.
    Reply
  • @Arkz

    Yes there is a singal core,

    http://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors#Single-Core_Mobile_processors
    Ok it is not under the same branding but it is part of the same microarchitecture
    Reply
  • Yuka
    I might be wrong, but i resemble that the Pentium 166 (32bits adress bus and all) had support for 4Gb of memory. I remember IBM sold it's top line (at that time) with 64Mb support (even with SDR PC100/66 support). Correct me if i'm wrong please.
    Reply
  • neiroatopelcc
    The core 2 does supply 1-4 cores - 2 cores per die, where one might be disabled, and one or two dies on a socket. It's no less right to call a core2duo a cpu with 1-4 cores, than it is to put the pentium d on the same page as a single core prescot, as it's the very same principle.
    Reply
  • cangelini
    Arkzgreat article with only a few slight errors (like saying the core2duo has 1-4 cores http://en.wikipedia.org/wiki/Coree ... i don't think there's a 1 cored version lol)Looking forward to the AMD article.
    Thanks for the heads-up! I tweaked that passage to better represent the Core 2 architecture's available configurations!
    Reply
  • randomizer
    vosesterOk it is not under the same branding but it is part of the same microarchitecture Exactly. The article says:

    ArticleThere are many versions of the architecture, resulting in configurations with a different number of cores
    There is no mention of the branding, so there is no actual error there, just misinterpretation.
    Reply
  • ImSpartacus
    Arkzgreat article with only a few slight errors (like saying the core2duo has 1-4 cores... i don't think there's a 1 cored version lol)Looking forward to the AMD article.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16819116039
    Yes, it isn't called a "Core 2 Duo," but it uses the Core architecture and only has a single core enabled.

    But I will have to say, there aren't any 3 core models...
    Reply
  • magicandy
    Good to hear you're not only doing an AMD article, but an ATI one as well (in response to the Nvidia article you did earlier, assuming). A sign of class from the new Tom's is a welcome one.
    Reply
  • harrycat88
    I wish they would get rid of those stupid SNAP Linkbubless and Inteltex misguiding links. Who ever invented those stupid annoying double lined text popups should have been burned at the stake
    Reply