Head-to-Head

ASUS Zenbook S14 (2025) vs GMKtec NucBox M5 Pro Mini PC

Option A

ASUS Zenbook S14 (2025)

ASUS · npu laptop

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Option B

GMKtec NucBox M5 Pro Mini PC

GMKtec · mini pc

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◈ BLUF VerdictBottom Line Up Front

Winner for LLMs

Mini PC

Winner for Stable Diffusion

Mini PC

Winner for Power Efficiency

Mini PC

Overall Winner

Tie

GMKtec NucBox M5 Pro Mini PC leads in memory bandwidth (51 GB/s vs 0 GB/s), making it faster for LLM token generation. ASUS Zenbook S14 (2025) has 0% less memory (32 GB vs 32 GB).

Spec Comparison

SpecS14 (2025)Mini PC
Memory32 GB Unified32 GB Unified
Memory Bandwidth51 GB/s
TDP (Power Draw)45W
Editorial Rating4.4/54.3/5
Max LLM Size13B (Q4 quantized)
Form Factor14" LaptopMini PC

Performance Verdicts

Winner for LLM Inference

Mini PC wins

Both have 32 GB memory, so bandwidth decides. GMKtec NucBox M5 Pro Mini PC's 51 GB/s vs 0 GB/s translates directly to more tokens per second at equivalent model sizes.

Winner for Stable Diffusion / Image Generation

Mini PC wins

Neither is optimised for image generation, but GMKtec NucBox M5 Pro Mini PC's 51 GB/s bandwidth makes generation faster. Both run SDXL via Metal (macOS) or ROCm (Linux). Expect slower generation times than a discrete GPU.

Winner for Power Efficiency

Mini PC wins

GMKtec NucBox M5 Pro Mini PC draws 45W at peak vs 999W — a 954W difference. Running AI workloads 12 hours/day, that's roughly 4179 kWh saved per year. For always-on inference, GMKtec NucBox M5 Pro Mini PC has meaningfully lower operating costs.

Overall Winner

tie

Both products are closely matched. Your choice should come down to price, ecosystem preference, and the specific models you plan to run.

Who Should Buy Which?

Buy the S14 (2025) if…

Buy the ASUS Zenbook S14 (2025) if budget is your primary constraint or if you need 32 GB of memory at a lower price point. Good for 7B–13B model inference.

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Buy the Mini PC if…

Buy the GMKtec NucBox M5 Pro Mini PC if LLM inference speed is your priority — its 51 GB/s bandwidth delivers faster token generation. Also choose it for GMKtec ecosystem advantages.

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Related Comparisons

Frequently Asked Questions

Q1Which runs Ollama faster — ASUS Zenbook S14 (2025) or GMKtec NucBox M5 Pro Mini PC?

GMKtec NucBox M5 Pro Mini PC runs Ollama faster. Its 51 GB/s memory bandwidth vs 0 GB/s means faster token generation — roughly — more tokens/second on the same model. On Llama 3.1 8B, expect around 2 tok/s vs 0 tok/s.

Q2Can either mini PC run Llama 3 70B?

Neither mini PC has enough memory for Llama 3 70B without heavy CPU offloading (39 GB required at Q4_K_M). You would need a Mac Mini M4 Pro with 64 GB unified memory or a discrete GPU with 24 GB VRAM paired with ample system RAM.

Q3Which is better value for local AI in 2026?

GMKtec NucBox M5 Pro Mini PC offers better performance-per-dollar for AI workloads due to its 51 GB/s bandwidth advantage. However, if price is the primary concern and 7B–13B inference is the goal, both get the job done — the gap matters more at higher workloads and model sizes.

Q4Which has better software support for local AI?

Both run Ollama well. AMD-based mini PCs offer ROCm acceleration on Linux; Intel-based ones are adding OpenVINO support. macOS Apple Silicon has the most polished Ollama experience.

Full Reviews

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