The much-anticipated 2023 Mac Pro will almost certainly lack features considered critical for workstations: upgradable RAM and support for eGPUs. But this isn’t Apple blindly making an error — it’s an inescapable fact of the M-series’ unified memory architecture.
The limitation isn’t new: it’s been known since the M1 processor was announced. But the imminent release of a top-tier macOS workstation is shining a spotlight on the problem.
For those who weren’t paying attention back in 2020, here’s an explanation of why RAM upgrades and plug-in GPU likely aren’t an option for the 2023 Mac Pro.