The easiest way to tell is whether or not it has a slot-loading optical drive. If it is, it takes a regular DIMM and the RAM is accessed through a door on the back bottom. If it has a regular CD-ROM, ...

Several readers have inquired regarding whether or not the iMac Core Duo (Early 2006) will see a performance boost from installing SO-DIMMs in matched pairs, as was the case with the iMac G5. Indeed ...

Reader Doug Eldred also sent us the following question: "Does anyone have any actual data for how much difference 'matched RAM' makes on the G5 iMac? Is this a mostly theoretical boost, or does it ...

Update: Despite what Apple's internal document stated, OWC has released an aftermarket 256GB memory upgrade kit for the iMac Pro for $2,499. Last week, Apple added a 256GB RAM configure-to-order ...

What it does: upgrading the memory of this iMac gives you more options and better performance. It's a low-cost improvement that gives Apple's latest OSX—including the upcoming Mavericks release—the ...