core 2 duo vs i3 i5 i7

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mshabsovich

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what is new about those i3 5 and 7 chips from intel? how much better are the than the core 2 duos? any idea when these new chips will be in the macbooks?
 

Triple6

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There's a lot more to them then just cache. They have improved and increases the cache but thats just a small part.
There is a huge diversity of processors in the entire Core i series just as there is in the Core 2 Duo/Quad family. So that means the performance various just as much, in some cases the Core 2 Duo's and Quads can outperform the i5 and i7's and i3's are easily outperformed by higher end models of of the C2D and C2Q's.

Basics: They are dual, quad, or tri-core processors and they all support HyperThreading(I think all do) which allows them to virtualize an additional 2, 4, or 6 cores to further improve multi-threaded applications. They have improved power management over the Core 2 Duo's in the same area they are meant to compete. Core i5's and i7's also have something called TurboBoost which allows some cores to be turned off when not required and the clock speed of the remaining cores to be increase - built-in or designed overclocking in a way. Also the i3's and some i5's also include the graphics processor right on the processor so the performance of the graphics is improved considerable compared to previous Intel graphics built into the motherboard and now on par with what AMD and NVidia offer in their chipsets.
 
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