local intelligence

can it run

Can the RTX 3090 (24GB, used) run gemma3 27B?

TIGHT

Yes, but close to the edge. 24GB against a 22GB working set: it runs, with little room for long context windows or other processes.

~25–42 tok/s

weights 17GB + KV cache 1.94GB at 4k context vs ~24GB usable → full. 18.9 GB needed of 24 GB usable — headroom for context

computed roofline: 936 GB/s × 0.46–0.76 efficiency window / 17.0GB (Q4_K_M) — bands, never points.

Community check: ~26 tok/s · 20-27B Q4 · 20 runs · inside our computed band — localmaxxing.com

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Specs

model file17GB (GGUF Q4_K_M)
minimum memory22GB working set
this machine24GB GDDR6X, 936 GB/s
params27B
licensegemma
price$1100

Run it

model files: hugging face ↗

easy run: ollama pull gemma3:27b

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

Alternatives

Mac mini M4 (32GB) — cheapest machine that runs it ($999)

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