M1 and Big Sur. With great power comes great capability.
M1 is the most powerful chip we’ve ever made. macOS Big Sur is the most advanced desktop operating system in the world. Combined, they take iMac to entirely new levels of performance, efficiency and security. iMac wakes from sleep almost instantly, apps launch in a flash, and the whole system feels fluid, smooth and speedy. With up to 85 per cent faster CPU performance and up to two times faster graphics performance than standard 21.5-inch iMac models, you can use apps like Xcode and Affinity Photo to compile code in a fraction of the time or edit photos in real time.3 And it stays cool and quiet even while tackling these intense workloads. That’s the power of hardware, software and silicon — all designed together.