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witweb | 4 years ago

Is the efficiency really that depend on the architecture (x86 vs arm64)? I always thought Apples lead comes from things like the little big approach and the lower transistor size. Can someone elaborate?

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knolan|4 years ago

A part comes from the dedicated units such as the hardware media and neural blocks. So you can export video in Apple’s ProRes in something like Final Cut at way better perf/W compared to doing some other codec blocks on a GPU in Premiere Pro.

You also save a lot of time and power not having to move data between memory pools by having fast access to the unified memory.

It seems that there’s no one thing that achieves the efficiency numbers we’re seeing. It’s excellent execution across the entire design.

akmittal|4 years ago

Yes it does, ARM provides great performance even at very low power consumption but x86 can't. That's the reason x86 failed for mobile devices.