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2023 Mac Pro M2 Ultra: Per CPU Performance Variation

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

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2023 Mac Pro M2 Ultra

The M2 Ultra chip has 16 performance cores and 8 efficiency cores.

Once 17 or more CPU cores are used, a drop in per CPU performance can be expected, since the efficiency cores are slower than the performance 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If below are out of date: view current Mac wishlist and all current OWC wishlists.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

Per-CPU performance — SHA512 hashing

SHA512 hashing speed with 1 or 2 CPU cores is notably faster than 3..16 CPU cores.

The per-CPU slowdown with 3+ cores is presumably not related to memory bandwidth, because from 3...16 CPU cores the speed is invariant.

Is there higher-speed upclocking when only 1 or 2 CPU cores are in use?

2023 Mac Pro: per CPU performance, 1..24 CPU cores
2023 Mac Pro M2 Ultra
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