local intelligence

can it run

Can the RTX 3090 (24GB, used) run qwen3-coder 30B-A3B MoE?

TIGHT

Yes, but close to the edge. 24GB against a 24GB working set: it runs, with little room for long context windows or other processes.

~230–380 tok/s (active-expert estimate)

weights 18.6GB + KV cache 0.38GB at 4k context vs ~24GB usable → full. 19.0 GB needed of 24 GB usable — headroom for context

computed roofline: 936 GB/s × 0.46–0.76 efficiency window / 1.9GB (Q4_K_M) — bands, never points.

MoE: file is 18.6GB (that decides fit) but only ~3B of experts activate per token (~1.9GB streamed) — band below is the active-expert estimate, optimistic; community MoE rows run several× the naive bandwidth math

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Specs

model file18.6GB (GGUF Q4_K_M)
minimum memory24GB working set
this machine24GB GDDR6X, 936 GB/s
params30B-A3B MoE
licenseapache-2.0
price$1100

Run it

model files: hugging face ↗

easy run: ollama pull qwen3-coder:30b

runs with: ollama · llama.cpp · koboldcpp · lm studio

Alternatives

Mac mini M5 Pro (64GB) — cheapest machine that runs it ($1669)

ASUS ExpertCenter Pro ET900N G3 (GB300) — this model on the biggest machine

rtx-5090 — the next step up from this machine's GPU

Buy

NVIDIA (used market) ↗ · Amazon ↗

2026-09-17 · ← full hardware catalog · prices verified at source, may drift