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Can a M2 Ultra 64GB run Nemotron 3.5 Lightning 30B-A3B (MoE)?

Yes. Nemotron 3.5 Lightning 30B-A3B (MoE) fits in fast memory on M2 Ultra 64GB at Q8_0 (36.4 GB needed, 48.0 GB usable), about 96 tok/s (estimate).

Hardware: M2 Ultra 64GB · Model: Nemotron 3.5 Lightning 30B-A3B (MoE)

M2 Ultra 64GB has 64 GB of unified memory and 800 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 48.0 GB. Nemotron 3.5 Lightning 30B-A3B (MoE) (31.6B, 3B active, NVIDIA) at Q8_0 is a 35 GB download and needs 36.4 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size35 GB
Memory needed36.4 GB
Usable fast memory48.0 GB
Fitfits in fast memory
Estimated speed~96 tok/s (estimate)
Commandollama run nemotron-3.5-lightning:30b-a3b-q8_0
Open M2 Ultra 64GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

A project by OnDevice Labs · llms.txt