What is the difference between Pentium and Core procesors.
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  1. Welcome to Tom's Forum! :)

    I assume you're asking 'What's the difference between Pentium D and Core 2 Duo?'

    First it depends on the specific CPU, but here's a generalized comparison.

    The advantages to the Core 2 Duo:
    FSB Speed 1066MHz vs 533MHz
    Lithography 65 nm vs 90nm
    Lower TDP
    Intel® Virtualization Technology (VT-x)
    Enhanced Intel SpeedStep® Technology
    Thermal Monitoring Technologies

    Pentium D -
    Dual-core microprocessor
    No Hyper-Threading
    800(4×200) MHz front side bus
    LGA 775 (Socket T)
    Smithfield – 90 nm process technology (2.66–3.2 GHz)
    Introduced May 26, 2005
    2.66–3.2 GHz (model numbers 805–840)
    Number of Transistors 230 million
    1 MB × 2 (non-shared, 2 MB total) L2 cache
    Cache coherency between cores requires communication over the FSB
    Performance increase of 60% over similarly clocked Prescott
    2.66 GHz (533 MHz FSB) Pentium D 805 introduced December 2005

    Intel Core 2 -
    Conroe – 65 nm process technology
    Desktop CPU (SMP support restricted to 2 CPUs)
    Two cores on one die
    Introduced July 27, 2006
    SSSE3 SIMD instructions
    Number of Transistors: 291 Million
    64 KB of L1 cache per core (32+32 KB 8-way)
    Intel VT-x, multiple OS support
    TXT, enhanced security hardware extensions
    Execute Disable Bit
    EIST (Enhanced Intel SpeedStep Technology)
    iAMT2 (Intel Active Management Technology), remotely manage computers
    LGA 775
  2. I'm not sure what your talking about specifically.

    Generally, Intel uses the "Pentium" brand for their worse processors in each generation. Currently, you can buy Pentium processors, but they are all worse than the intel core i3, which is worse than the core i5, etc.
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