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  • Ok, so - the Macbook has three processor options and two HDD sizes, I'm not interested in the 512 GB HDD so it's down to processor.

    Which gives us:
    1.2 Ghz m3 £1,429
    1.3 Ghz i5 £1,519
    1.4 Ghz i7 £1,654

    Is this the standard case of want the fastest, pick the one in the middle, or is i5 significantly inferior to the i7?

    Or is the m3 fine and it's all down to RAM and HDD speed these days?

  • This should explain the processor differences
    http://www.trustedreviews.com/opinions/b­est-intel-processor-core-i3-i5-i7
    @Dammit

    The mobile processors' branding doesn't reflect the chips' speed well though.
    Looks like, from https://en.wikipedia.org/wiki/MacBook_(Retina)
    that the 3 chips are

    Core m3: m3-7Y32
    Core i5: i5-7Y54
    Core i7: i7-7Y75

    Side by side
    https://ark.intel.com/compare/97538,95452,95441

    There's almost no difference apart from the clock speeds. The i7 has a few things enabled the other two don't. Most you won't care about

    Intel® vPro Technology
    Intel® Stable Image Platform Program (Intel® SIPP)
    Intel® Trusted Execution Technology
    ^ ^^ ^^^ for enterprise management/security I think

    Intel® TSX-NI
    ^ looks like something that helps multi-threaded applications. But it's only a 2 core machine so probably not massively helpful (maybe, I don't know really)

    They all have the same number of cores, the differences are just clock speed (1.2, 1.3, 1.4 GHz) and graphics chip speed (900, 950, 1050 MHz).
    So looks like the core i5 version will be approx 8% quicker than the core m3.
    And the i7 will be ~9% quicker than the i5, and 17% faster than the m3.

    Probably a bit less noticeable for anything where the processor isn't maxed out though.

    So they're all fine. Pay more, get faster but nothing huge.

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