all the i5/i7 macbooks seem to be running on the Arrandale line, so that would make them all dual core.
it looks like the top i7 macbook is using the Intel Core i7-620M processor. the two i5 models are the Intel Core i5-520M (2.4GHz) and the Intel Core i5-540M (2.53GHz).
all the i5/i7 macbooks seem to be running on the Arrandale line, so that would make them all dual core.
it looks like the top i7 macbook is using the Intel Core i7-620M processor. the two i5 models are the Intel Core i5-520M (2.4GHz) and the Intel Core i5-540M (2.53GHz).