The Intel iMac is built with the Intel Core Duo Processor. It has two memory sockets and can be upgraded to 2GB maximum using (DDR2-667 DIMMs) and if both are loaded with an equal amount of RAM, you can take advantage of the system's dual-channel memory interface for an additional performance boost.

Standard Memory
512MB Removable
Maximum Memory
Memory Expansion (No. of sockets)
2 Expansion Sockets
Memory Expansion
Install 1 at a time
Memory Sizes
512MB | 1GB
Memory Speed (Type)
PC2-5300 DDR2-667