I've had my 2.0 core duo white iMac for a few years and have always loved it upgraded to 2 gb ram. On october 14 (release date) I purchased a brand spankin new unibody macbook. It is the 2.0 core 2 model pretty much standard also with the two gb ram. I had a little race a few different times both systems are running the latest version of leopard. The iMac is always faster. Both system hdds are nearly full 250gb for the imac and 160 in the macbook. So my question is why is the older iMac faster to boot? The macbook has ddr3 ram and the outstanding fsb speed. Shouldn't it be faster?