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Why A9 is multicore by A8 doesn't

Hi Experts,

Which factor in processor decides whether it can be used in multi-core or not ?

Like as per my understanding A8 is used in single core whereas A9 is used in multi core. So which distinctive feature in A9 favors the multi core application ?

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+1 Mark Nicholson over 10 years ago

Hi,
I'd say... Hardware support for maintaining cache coherency (between the L1 data caches of the individual cores) is the main feature MPcores have, that earlier single core designs (like A8) lack. Hope that helps.
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+1 Mark Nicholson over 10 years ago

Hi,
I'd say... Hardware support for maintaining cache coherency (between the L1 data caches of the individual cores) is the main feature MPcores have, that earlier single core designs (like A8) lack. Hope that helps.
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0 techguyz over 10 years ago in reply to Mark Nicholson

Thanks Mark.
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