The Odd Case of the 3 GB RAM Limit in the New MacBook Pros

Jonathan Seff:

At the same time, Apple also increased the maximum RAM for the MacBook Pro from 2 GB to 3 GB. That’s an impressive number, but if there are two RAM slots, why not a 4 GB limit? When working on my reviews of the Core 2 Duo iMacs — which, except for the entry-level model, share the same 3 GB RAM limit — Apple told me that the Intel chip set used inside had limited memory addressing capabilities, meaning 3 GB is the most the system can address. I have to assume that Apple is using the same chip set in the MacBook Pro.

So the 3 GB configuration is one 2 GB chip plus one 1 GB chip. I dispute Seff’s observation that there aren’t many people who need 4 GB in a notebook — I’d venture to say there are a lot of people who need at least 4 GB in a notebook. E.g. anyone who wants to run Parallels with a generouos allotment of memory for both OSes.

Tuesday, 24 October 2006

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