Apple is expected to double the RAM capabilities of the next-generation of Intel Ivy Bridge-powered iMacs and Mac minis, reports 9to5Mac. With Ivy Bridge PCs shipping in the middle of this year, the upgraded Macs are considered to be somewhat overdue. However, when they arrive, users who choose to purchase a build-to-order machine will be able to add up 32GB of RAM in the iMac or 16GB of RAM in the Mac mini.