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Expandability traded for performance Apple last week set the cat among Intel's pigeons with the launch of its first PCs incorporating silicon designed in-house. The company claims its M1 Arm chip delivers up to 3.5x faster CPU performance, up to 6x faster GPU performance, up to 15x faster machine learning, and up to 2x longer battery life than previous-generation Macs, which use Intel x86 CPUs. Let's take a closer look at how Apple uses high-bandwidth memory in the M1 system-on-chip (SoC) to deliver this rocket boost. High-bandwidth