local intelligence

can it run

Can the RTX 3090 (24GB, used) run mixtral 8x7B MoE?

NO

No. 24GB of memory can't hold the 33GB working set this model needs. A smaller quant or a bigger machine is required.

~110–180 tok/s (active-expert estimate)

weights 26GB + KV cache 0.5GB at 4k context vs ~24GB usable → offload-partial. 26.5 GB vs 24 GB usable — partial CPU offload, expect large speed loss

computed roofline: 936 GB/s × 0.46–0.76 efficiency window / 3.9GB (Q4_K_M) — bands, never points.

MoE: file is 26GB (that decides fit) but only ~1.05B of experts activate per token (~3.9GB streamed) — band below is the active-expert estimate, optimistic; community MoE rows run several× the naive bandwidth math

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Specs

model file26GB (GGUF Q4_K_M)
minimum memory33GB working set
this machine24GB GDDR6X, 936 GB/s
params8x7B MoE
licenseapache-2.0
price$1100

Run it

model files: hugging face ↗

easy run: ollama pull mixtral:8x7b

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

Alternatives

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

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