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Can the ZhaoXin KX-U6580 NAS (64 GB) run Falcon-H1 1.5B Instruct?

24Basic quality (D) · 24 of 100: how capable the model is at Q4_K_M, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking.

Yes, it runs well

Runs well. At Q4_K_M it needs about 6.1 GB of 54.4 GB usable, with an estimated speed of 11.7 tok/s.

Best quant
Q4_K_M
Generation speed
11.7 tok/s
Prompt processing
16.1 tok/s
First token (1K prompt)
63.5 s
Largest safe context
128K

Best app to run it on the ZhaoXin KX-U6580 NAS (64 GB)

On Linux

llama.cpp

Command line + local API · runs on llama.cpp

  • Usually the first to support new model architectures.
llama-server -hf tiiuae/Falcon-H1-1.5B-Instruct-GGUF:Q4_K_M

How we choose: the files published for this model, which apps run in a container on a NAS without a graphics card (models run on its processor), and whether the model fits fully in the memory models can use. Details.

Download Falcon-H1 1.5B Instruct

Recommended for the ZhaoXin KX-U6580 NAS (64 GB): Q4_K_M. Every other quantization has its own download link in the table below.

Quantized files · GGUF

Works in LM Studio, llama.cpp, Jan and Ollama. No sign-in needed.

Download the Q4_K_M file (opens in a new tab)

huggingface.co/tiiuae/Falcon-H1-1.5B-Instruct-GGUF (opens in a new tab)

ollama run hf.co/tiiuae/Falcon-H1-1.5B-Instruct-GGUF:Q4_K_M

Original weights · Hugging Face

Full-precision files from TII, for fine-tuning, vLLM, Transformers.

huggingface.co/tiiuae/Falcon-H1-1.5B-Instruct (opens in a new tab)

No sign-in needed.

Links checked 2 days ago against Hugging Face, Ollama and GitHub.

How it’s rated

Quality 24Basic quality (D) · 24 of 100: how capable the model is at Q4_K_M, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking.
How capable the model itself is at Q4_K_M, from its editorial quality tier scaled by the quantization or precision. It’s the same on any hardware that runs this variant. Scale: A+ 85+ · A 70+ · B 55+ · C 40+ · D under 40.
Runs Runs well
How well it runs on the ZhaoXin KX-U6580 NAS (64 GB): speed, capped by how well it fits in memory. Runs great: 30+ tokens/s (or near the image, video or decision speed target) · Runs well: 10+ tokens/s · Slow: 3+ tokens/s · Very slow: under 3 · Won’t run: doesn’t fit even with offload. A tight fit or RAM offload caps it at Runs well; heavy offload caps it at Slow.

Match score

To order lists, each result also gets a match score out of 100 from four parts. It favors the most capable model that still runs well.

Model qualityEditorial quality tier of the model, scaled by the quantization or precision used.11.1 / 45
Memory fitFull marks when the model fits in the share of the NAS’s memory that models can use (the rest stays with the NAS system and its storage services); fewer when it goes past that limit.25.0 / 25
SpeedGeneration speed against a 40 tokens/s target for LLMs, or render time against a target for image and video.8.1 / 15
Memory useRewards using the memory you have, so a bigger, better variant beats a tiny one that leaves most memory idle.2.6 / 15
Match score46.8 / 100

The match score orders results; it is not shown as a grade. Quality and Runs are the two ratings in the tables.

Every quantization on the ZhaoXin KX-U6580 NAS (64 GB)

Quant Memory needed Available Speed Runs Quality Download
Q2_K 5.8 GB 54.4 GB 19.3 tok/s Runs well 18Basic quality (D) · 18 of 100: how capable the model is at Q2_K, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
Q3_K_M 5.9 GB 54.4 GB 15.2 tok/s Runs well 21Basic quality (D) · 21 of 100: how capable the model is at Q3_K_M, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
Q4_K_M 6.1 GB 54.4 GB 11.7 tok/s Runs well 24Basic quality (D) · 24 of 100: how capable the model is at Q4_K_M, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
Q5_K_M 6.3 GB 54.4 GB 9.7 tok/s Slow 25Basic quality (D) · 25 of 100: how capable the model is at Q5_K_M, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
Q6_K 6.4 GB 54.4 GB 8.1 tok/s Slow 25Basic quality (D) · 25 of 100: how capable the model is at Q6_K, whatever it runs on. Match score 46/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
Q8_0 6.8 GB 54.4 GB 6.0 tok/s Slow 26Basic quality (D) · 26 of 100: how capable the model is at Q8_0, whatever it runs on. Match score 45/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab)
F16 8.3 GB 54.4 GB 2.8 tok/s Very slow 26Basic quality (D) · 26 of 100: how capable the model is at F16, whatever it runs on. Match score 44/100 (quality, fit, speed and memory use) sets the ranking. GGUF (opens in a new tab) Original weights (opens in a new tab)

Memory figures assume 8K of context. Longer conversations or documents grow the KV cache.

Other hardware that runs it

Quick answers

How much memory does Falcon-H1 1.5B Instruct need on the ZhaoXin KX-U6580 NAS 64GB?

At Q4_K_M it needs about 6.1 GB. The ZhaoXin KX-U6580 NAS 64GB has 54.4 GB usable.

How fast is Falcon-H1 1.5B Instruct on the ZhaoXin KX-U6580 NAS 64GB?

About 11.7 tok/s at Q4_K_M, an estimate from the hardware’s memory bandwidth and the size of the model.

Which quantization of Falcon-H1 1.5B Instruct should I use on the ZhaoXin KX-U6580 NAS 64GB?

Q4_K_M. Of the versions that fit, it is the one that runs best; when two run equally well, the check prefers the higher-rated one.

Estimates come from published hardware specs and our open formulas, not from running the model on your machine. Real speed varies with runtime, drivers and settings. Numbers marked “Measured” come from a linked benchmark.

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