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2021 MacBook Pro M1 Max: Memory Bandwidth

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MPG tested the Apple 16.2" MacBook Pro with M1 Max Chip Z14X000HR, a maxed-out model in all ways except 4TB SSD instead of the maximum 8TB SSD.

About

2021 MacBook Pro M1 Max

This test uses the mt stress command of diglloydTools MemoryTester to evaluate memory bandwidth with a real application using all CPU cores. Not to be confused with memory or CPU specifications—this is the real deal, whatever bandwidth an application actually has available to it combined with what any operating system overhead entails.

Memory bandwidth is especially important for more CPU cores or very fast CPU cores; it is important that it be proportional to the CPU computing power. Hence the 2019 Mac Pro with its 28 CPU cores needs high memory bandwidth (many cores), as does the Apple M1 Max chip (very high speed cores).

If below are out of date: view current Mac wishlist and all current OWC wishlists.

CLICK TO VIEW: Recommended Memory, Storage,etc

CLICK TO VIEW: Recommended MacBook Pro Configurations

Results

The 2021 MacBook Pro M1 Max memory bandwidth is incredible, leaving the six-channel memory of the 2019 Mac Pro well behind, and the iMacs in the dust.

Tested with 128GB OWC memory.

2021 MacBook Pro M1 Max vs 2019 iMac 5K, 2020 iMac 5K, 2019 Mac Pro: memory bandwidth
2021 MacBook Pro M1 Max

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