Can I Run Mistral Small 3.1 on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM)?

Written by Jakub Rusinowski · Last updated March 17, 2025

Yes

Yes — Mistral Small 3.1 24B at Q6_K needs about 21.5 GB of the 24 GB usable on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM) (~2.5 GB spare), at ~32.5 tok/s (estimated), with room for about 16,384 tokens of context.

Confidence: high · Recommended quantization: Q6_K · Estimated speed: ~32.5 tok/s

RTX 3090 Desktop (24 GB VRAM, 64 GB RAM) — what it gives a model

Usable memory for models24 GB
Memory bandwidth936 GB/s
Form factorDesktop
Operating systemWindows or Linux
Memory upgradeableYes

Mistral Small 3.1 on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM): memory by quantization

QuantMemory neededFits 24 GB?Max contextEst. speedDownload
F1649.3 GB✗ No47.2 GB
Q8_027.2 GB✗ No25.1 GB
Q6_K21.5 GB✓ Yes16K~32.5 tok/s19.4 GB
Q5_K_M18.9 GB✓ Yes32K~37 tok/s16.7 GB
Q4_K_M16.4 GB✓ Yes32K~42.6 tok/s14.2 GB
Q3_K_M12.2 GB✓ Yes64K~57 tok/s10.1 GB
Q2_K9.9 GB✓ Yes64K~70.2 tok/s7.8 GB

RTX 3090 desktop limitations

Recommended setup

Ollama or llama.cpp (CUDA/ROCm) — vLLM if you need concurrent serving

How these numbers are calculated

FAQ

Can I run Mistral Small 3.1 on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM)?

Yes — Mistral Small 3.1 24B at Q6_K needs about 21.5 GB of the 24 GB usable on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM) (~2.5 GB spare), at ~32.5 tok/s (estimated), with room for about 16,384 tokens of context.

Which quantization of Mistral Small 3.1 should I use on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM)?

Q6_K — it needs about 21.5 GB of the 24 GB available, downloads as roughly 19.4 GB, and runs at an estimated 32.5 tokens/sec with up to 16K of context.

What limits Mistral Small 3.1 on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM)?

Nothing binding — the model fits with headroom and generates at a usable speed on this hardware.

Which runtime should I use?

Ollama or llama.cpp (CUDA/ROCm) — vLLM if you need concurrent serving

Other Computers

Other Models on RTX 3090 Desktop (24 GB VRAM, 64 GB RAM)

Mistral Small 3.1 on GPUs

What This Model Is Good At

Model & Tools

← Can I Run It? | Mistral Small 3.1 model page | Check your hardware