The point of the Accelerate.framework is that it is the API and also abstracts away hardware differences between the processors of macOS, iOS, tvOS, and watchOS

The point of the Accelerate.framework is that it is the API and also abstracts away hardware differences between the processors of macOS, iOS, tvOS, and watchOS devices. >Accelerate provides high-performance, energy-efficient computation on the CPU by leveraging its vector-processing capability. The following Accelerate libraries abstract that capability so that code written for them executes appropriate instructions for the processor available at runtime https://developer.apple.com/documentation/accelerate https://developer.apple.com/documentation/accelerate