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How many physical chips are inside dual core and quad core cpus?

I am too much confused about that, please explain how many physical chips a dual core and quad core CPU has? Thanks
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More about physical chips inside dual core quad core cpus
  1. one chip, multicore
  2. Best answer
    The microprocessor package for a Core 2 Duo microprocessor contains only a single chip containing two cores and accompanying cache.

    The microprocessor package for a Core 2 Quad microprocessor contains two chips each containing two cores and accompanying cache. The two chips are connected to a multi-chip-module. There is little logical difference between a Core 2 Quad in a single socket, and a pair of Core 2 Duos in two sockets.

    Starting with the Nehalem series of microprocessors all of the cores were integrated into a single chip. Some variants of the Westmere microprocessor contained an IGP within the package as well, as a separate chip.

    All Sandybridge and Ivybridge microprocessors exist as a single chip with all components integrated including the IGP (where present).

    Some variants of the new Haswell microprocessor contain a DRAM cache known as Crystalwell which exists as a separate chip inside the package.

    I hope that this answered your question.
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