Mac Studio M2 Ultra 128GB
Hardware details
CPU
Apple M2 Ultra (24C)
system processor
GPU
Integrated (76-core GPU)
integrated / shared-memory path
Memory
128 GB unified
96-128 GB local AI memory band
Segment
Desktop
Apple device class
Storage
Plan model storage
local model downloads can grow quickly
Fit posture
Large unified-memory experiments in a quiet Mac desktop.
decision summary with stated limitations
Practical notes
Unified memory gives unusually large local model headroom for macOS workflows.
Workload type still decides whether a CUDA workstation is a better fit.
Fit evidence gap
Evidence-limited device guidance
Model guidance
A model pairing would overstate the available evidence. Start with the methodology and verify the exact device source before choosing a local runtime or model.
Memory boundary
128GB unified is a planning boundary, shared with the platform or runtime where applicable; it is not a measured compatibility guarantee.
Uncertainty to keep visible
Catalog specifications are orientation only. They do not establish fit, runtime support, or performance for this exact device.
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