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Hi I have the A1278, in Canada but I cannot say where it originated, but don’t think that should be an issue. Mine is a Dual Core 2.9GHz. You list the 2.4 as largest, and is ‘Core 2 Duo’ the same as saying ‘Dual Core’? See attached image. If you can help me clear up the difference, and my confusion, I would appreciate it.
Here’s your systems specs: 13" MacBook Pro 2.9 GHz Core i7 (Mid-2012) Apple did confuse people with the regular MacBook also caring the A1278 model as well 13" MacBook 2.4GHz Core 2 Duo (Unibody)