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Can a Mac Studio M3 Ultra (80c GPU) 512GB run DeepSeek Coder V2 Lite 16B (MoE)?

Yes. DeepSeek Coder V2 Lite 16B (MoE) fits in fast memory on Mac Studio M3 Ultra (80c GPU) 512GB at Q8_0 (18 GB needed, 384.0 GB usable), about 126 tok/s (estimate).

Hardware: Mac Studio M3 Ultra (80c GPU) 512GB · Model: DeepSeek Coder V2 Lite 16B (MoE)

Mac Studio M3 Ultra (80c GPU) 512GB has 512 GB of unified memory and 819 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 384.0 GB. DeepSeek Coder V2 Lite 16B (MoE) (15.7B, 2.4B active, DeepSeek) at Q8_0 is a 17 GB download and needs 18 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size17 GB
Memory needed18 GB
Usable fast memory384.0 GB
Fitfits in fast memory
Estimated speed~126 tok/s (estimate)
Commandollama run deepseek-coder-v2:16b-lite-instruct-q8_0
Open Mac Studio M3 Ultra (80c GPU) 512GB 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