in keeping with Apple's 2011 move to quad-core CPUs for the last iteration of iMac, with Core i7 CPUs also available as options. 2015 was a big year for the iMac, primarily for the new displays ...

The M4 is the most recent generation of Apple Silicon. It was introduced in October 2024 in the iMac, Mac mini, and 14-inch MacBook Pro. The MacBook Air then got an M4 upgrade in March 2025.