While perusing our selection of restored Mac laptops, many of you have been confused by the difference between the intel Core Duo and Core 2 Duo processors in the classic MacBooks. Here's the low-down on these two similarly named CPUs:- Core 2 Duo runs about 30% faster than a Core Duo.
- Core 2 Duo has 64-bit architecture, while the Core Duo is 32-bit.
- Both processors have the same front-side bus speed of 667MHz and the same L2 cache.
While the processor's clock speed may be the same, a 2GHz Core 2 Duo runs faster than a 2GHz Core Duo, by virtue of it's improved 64-bit architecture. In spite of this, the power draw (and heat generated) is nearly identical on both processors. However, the Core 2 Duo is available in faster speeds than the Core Duo, and more speed means more power draw, more power means more heat.
Note: Some sources claim that the Core 2 Duo runs hotter, draws more power and is less stable than the Core Duo but, if you're comparing CPUs with the same clock speed, you're likely to find those differences negligible during ordinary use (ie. anything other than benchmark tests). If you're interested in such test results and other nitty gritty specifics, here's some more info for ya.
Labels: Apple, chip, Core 2 duo, Core duo, difference, intel, laptop, macbook, processor
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