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2021 MacBook Pro M1 Max: Memory Bandwidth
Related: 2019 iMac 5K, 2019 Mac Pro, 2020 iMac 5K, 4K and 5K display, Apple MacBook Pro M1, Apple Silicon, bandwidth, CPU cores, iMac, iMac 5K, laptop, Mac Pro, MacBook, MacBook Pro, Macs, memory, memory bandwidth, video
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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.
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).
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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.
TASCAM TM-280 Studio Microphone with Flight Case, Shockmount, and Pop Filter