I have an iMac and a MacBook with Intel Core 2 Duo processors. I realize that this is within the stated requirements for Lion.  However was wondering if by migrating to Lion this will result in too much demand on processor resources, thus a slower machine

I have an iMac and a MacBook with Intel Core 2 Duo processors. I realize that this is within the stated requirements for Lion.  However was wondering if by migrating to Lion this will result in too much demand on processor resources, thus a slower machine than using Snow Leopard?

Which iMac?  Which Macbook?   Both have had several model
itertations, even within the framework of a Core2Duo processor.
With that said, I have an early 2009 iMac 24", with 2.66 GHz
Core2Duo with 8 gig of RAM, and in my opinion, seems to be running
smoother and faster with Lion.

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