M3 Macs: there's more to performance than counting cores

Re:M3 Macs: there's more to performance than counting cores by exabrial on Friday November 03, 2023 @01:44PM (#38132291)

I think I'll hold out to the M4 and make sure memory bandwidth and latency is restored to it's previous value.

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Re:M3 Macs: there's more to performance than counting cores by GeekyBear on Friday November 03, 2023 @02:04PM (#38132566)

Given that Intel and AMD tend to choke the memory bandwidth on anything below their server chips, this seems short sighted.

The M3 Pro's "reduced memory bandwidth" is still double the memory bandwidth you see on Intel and AMD's HEDT chips.

Step up to the M3 Max and you're looking at five times the memory bandwidth of Intel and AMD's chips.

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Re:M3 Macs: there's more to performance than counting cores by throwaway49594 on Friday November 03, 2023 @04:37PM (#38134658)

You're comparing strictly CPU memory bandwidth to CPU + GPU. If you add CPU + GPU bandwidth for a PC you'll get similar numbers.

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Re:M3 Macs: there's more to performance than counting cores by buildbot on Friday November 03, 2023 @06:54PM (#38136137)

Your PC can't use the GPU memory bandwidth for the CPU whatsoever. So why would you add the bandwidth?

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Re:M3 Macs: there's more to performance than counting cores by exabrial on Saturday November 04, 2023 @10:29AM (#38141306)

Fair point, I think what I'm saying is I'm currently at an M1. I think waiting for an M4 will be another 10x leap. Apple is hellbent to release something new every year, so I think my M1 should last me quite a long time.

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