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2023 Mac Pro M2 Ultra: Memory Bandwidth

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MPG tested the Apple Mac Pro with M2 Ultra #Z171000US 192GB/4TB/60GPU. 76 GPU/8TB SSD are options.


2023 Mac Pro M2 Ultra

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 memory bandwidth an application actually has available to it, in a real operating system.

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If below are out of date: view current Mac wishlist and all current OWC wishlists.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

CLICK TO VIEW: Recommended M2 Ultra and M2 Max


The 2023 Mac Pro M2 Ultra memory bandwidth is incredible, leaving the six-channel memory of the 28-core 2019 Mac Pro well behind, and the iMacs a distant speck in the rearview mirror. However, M2 makes no upgrade over M1 peformance.

2023 Mac Pro: memory bandwidth
2023 Mac Pro M2 Ultra
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