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266 FSB vs 133 FSB

Discussion in 'AMD Thunderbird' started by Gaidheal, Jul 11, 2003.

  1. Gaidheal

    Gaidheal Guest

    Actually... the FSB is indeed 133Mhz. The CPU simply operates in its core
    at a much faster rate than this by using a multiplier. And since all
    Athlons now are DDR memory bus has double throughput of "normal" SDRAM
    system with the same processor and memory. The bus clock is not actually
    any higher, simply the memory and the processor are both able to
    send/receive twice per 'tick' (on both the rising and falling edges of the
    clock signal). But bigger numbers sell well, hence the PR+ bollocks and
    people adverstizing "FSB 400Mhz" motherboards :¬)

    Gaidheal, Jul 11, 2003
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  2. Gaidheal

    J.Clarke Guest

    FWIW, it looks like Intel is going to be going to the "PR+ bollocks"
    themselves at some point. Their new Pentium M processors perform at the
    level of higher clocked P4M processors. In order to make Centrino sell
    with the lower clock speeds eventually they're going to have to start
    using a "PR" rating of some sort themselves.
    J.Clarke, Jul 11, 2003
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