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Mac Book Pro with Retina Display — 2.7 GHz Models Differ in On-Chip Cache
See the Feb 14 discussion of the MacBook Pro Retina speed bump and buying advice.
To add one tip—
The 2.7 GHz model from 2012 has 8MB on-chip cache vs 6MB cache for the 2013 model also at 2.7 GHz. So the “old” 2.7 GHz model can be just a bit faster at the same clock speed and thus appears to be the preferable buy over the 2013 2.7 GHz.
However and for those seeking the very fastest model, the 2.8 GHz model also has the 8MB cache and a faster clock speed, so it is best of all if cost is not an issue.
