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0 pointsfomine33y ago0 comments

Massive memory bandwidth is for GPU, so not matter unless you utilize iGPU.

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I disagree, Anandtech tested the M1 max (409GB/sec bandwidth), and the CPUs managed 224GB/sec with the faster cores, and a total of 243GB/sec with fast and slow cores.

Sure that's quite a bit less than 409GB, but there's other major parts of the chip like the GPU, video codec acceleration, and neural engine.

Seems pretty unique and useful to me, not everything fits in cache.

fomine3OP3y ago

That's true that CPU core consumes massive available bandwidth on AT's test, but it doesn't mean that such bandwidth is used for real CPU usage. I don't oppose memory bandwidth is meaningful for total SoC including iGPU/ML/Video parts.

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sliken3y ago

I disagree, Anandtech tested the M1 max (409GB/sec bandwidth), and the CPUs managed 224GB/sec with the faster cores, and a total of 243GB/sec with fast and slow cores.

Sure that's quite a bit less than 409GB, but there's other major parts of the chip like the GPU, video codec acceleration, and neural engine.

Seems pretty unique and useful to me, not everything fits in cache.

fomine3OP3y ago

j / k navigate · click thread line to collapse