Apple’s latest iMac looks much like the previous one, but the company has packed a new M6 chip into its 24-inch all-in-one desktop, promising faster graphics, more processing power and a substantial boost in on-device AI performance.

The new iMac is available to pre-order from Wednesday in 35 countries, with deliveries and in-store availability starting on November 6.

The familiar design remains intact, including the thin body and seven colour options: blue, green, pink, yellow, purple, orange and silver. Most of the changes are under the hood.

The M6 chip comes with up to 12 CPU cores and 12 GPU cores, two more of each than the M4 in the previous model. Apple claims it delivers the fastest single-core CPU performance of any computer, based on its own tests.

The bigger change is how the chip handles AI.…