Best Mini PC for an Always-On Ollama Server (2026)
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Key Takeaways
- ✓Mini PCs draw 15–45 W vs 200–350 W for desktop GPUs — 24/7 savings matter
- ✓UM890 Pro runs 7B models CPU-only at 12–18 tok/s; fine for API server use
- ✓AOOSTAR GEM12 Pro + OCuLink eGPU unlocks GPU acceleration without a desktop PC
- ✓Mac Mini M4 Pro: 48 GB unified memory runs 32B models — best macOS option
- ✓Beelink SER8 is the <$400 starting point — 32 GB RAM for 7B and 13B
Best Mini PCs for Always-On Ollama Server — Ranked
Minisforum UM890 Pro — Best Overall
The Minisforum UM890 Pro runs the AMD Ryzen 9 8945HS (8-core, up to 5.2 GHz) and supports up to 96 GB DDR5-5600 dual-channel RAM — enough to load Llama 3.3 70B at Q4 entirely in RAM. The Radeon 780M iGPU (12 RDNA3 CUs) accelerates 7B and 13B models at 8–14 tok/s via ROCm. CPU-only 7B Q4 speed: ~12–18 tok/s. Idle power: ~15 W. Load (GPU active): ~35–45 W. Price: ~$500 (32 GB/1 TB) to $600 (64 GB).
AOOSTAR GEM12 Pro OCuLink — Best for eGPU
The AOOSTAR GEM12 Pro OCuLink adds an OCuLink port that connects to an external GPU at PCIe 4.0 x4 bandwidth (64 Gbps) — enough to run an RTX 3090 at full speed for Ollama. Without eGPU: same as other mini PCs, 13–18 tok/s CPU-only. With RTX 3090 eGPU: 60–80 tok/s on 7B Q4. The mini PC itself runs AMD Ryzen 7 Pro 8845HS with 32–96 GB DDR5. OCuLink to PCIe adapter required (~$30). Barebone price: ~$380; configured (32 GB/1 TB): ~$480.
Beelink SER8 — Best Budget Pick
The Beelink SER8 runs the AMD Ryzen 7 8745HS (8-core, up to 4.9 GHz) with 32 GB DDR5 and 1 TB NVMe SSD for ~$450. CPU-only Ollama speed: ~10–15 tok/s on 7B Q4. Idle power: 10–15 W. RAM is user-upgradeable (not soldered on current 8745HS revision). If you want a solid entry into always-on Ollama without spending $500+, the SER8 covers 7B and 13B models well.
Apple Mac Mini M4 Pro — Best for macOS
The Mac Mini M4 Pro (24-core GPU, 48 GB unified memory, ~$1399) is the only mini PC that runs 32B models at GPU speed out of the box. Ollama on Apple Silicon uses Metal, not CUDA — the 48 GB unified memory loads Qwen3 32B Q4 (~18 GB) and runs at 20–30 tok/s. Power: 18–30 W under Ollama load. Ideal for macOS users who want a silent, always-on home server that doubles as a desk machine. The price premium is real but justified if 32B performance matters.
Always-On Electricity Cost Comparison
At $0.15/kWh (US average), running 24/7 for 30 days:
| Device | Avg Load Power | Monthly Cost (24/7) |
|---|---|---|
| Minisforum UM890 Pro | 35 W | ~$3.78/mo |
| Beelink SER8 | 25 W | ~$2.70/mo |
| Mac Mini M4 Pro | 25 W | ~$2.70/mo |
| Desktop RTX 4060 Ti (comparison) | 200 W | ~$21.60/mo |
| Cloud API (GPT-5.5-mini, 1M tok/day) | N/A | ~$45–90/mo |
Related Guides
- ▸Ollama Latest Version: What's New? -- Ollama updates
- ▸Best Mini PC for Local LLM -- mini PC guide
- ▸How Much RAM Does a 7B Model Need? -- RAM requirements
- ▸Best Ollama Models for CPU-Only Inference -- CPU inference guide
- ▸Best SSD for Fast Model Loading -- SSD guide
- ▸Best VPN for Downloading AI Models -- VPN guide
Quick Answers
Can a mini PC run 13B or larger models at useful speed?▾
Does Ollama work well as a network server on a mini PC?▾
What about eGPU setups — are they worth it?▾
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