Apple Inc. announced a new iMac, MacBook Pros and the third generation of its in-house Mac processor line, rolling out a first-of-its-kind M3 chip that boosts performance and graphics horsepower.

The new chip lineup relies on advanced 3-nanometer manufacturing technology and more efficiently handles graphics processing, Apple said in a presentation Monday. The base model has eight main cores — the processing engines on a chip — in addition to 10 cores for graphics. The company also announced higher-end M3 Pro and M3 Max chips as part of a “Scary Fast”-branded product unveiling, an unusually timed event that kicked off at 5 p.m. California time.

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