Apple introduced the first Apple silicon Macs back in 2020 ... Apple uses the M4 in its entry-level Macs, including the iMac, Mac mini, and the entry-level 14-inch MacBook Pro.
The Apple iMac M1 is the first iMac to feature Apple Silicon at its core. With this iMac, alongside the supercharged M1 chip you’ll be getting 512GB of solid state storage capacity and 8GB of RAM.