David A U Q4_0 18.5B Parameters

VRAM Requirements for
MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF Q4_0

To run MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF locally at Q4_0 quantization, you need at minimum 12.71 GB of GPU VRAM.

12.71 GB
Required VRAM
10.41 GB
File Size
8K tokens
Context Window
18.5B
Parameters
Estimated VRAM Required
12.71
GB
Mid-Range GPU Required
0 16GB
RTX 3080 48GB
A6000 80GB+

Recommended GPU Configurations

Budget $600 – $900

Used RTX 3090 (24GB)

24 GB

Best used-market value for 24GB VRAM. Solid for 30B-class models.

Balanced $1,599 – $1,999

RTX 4090 (24GB)

24 GB

Fastest 24GB consumer GPU. Excellent for daily local inference.

Ultimate $2,500 – $3,500

NVIDIA A5000 (32GB)

32 GB

Pro workstation card with ECC memory. Maximum headroom at 24GB.

📊 VRAM Calculation Breakdown

Model File Size (Q4_0) 10.41 GB
Context Overhead (8,192 tokens × 18.5B × 2 ÷ 1M) 0.303 GB
System Buffer (OS + CUDA runtime) 2.00 GB
Total Required VRAM 12.71 GB

Try a Different Quantization

Use the interactive calculator to compare MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF across all available formats.

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MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF — Other Quantizations

Q2_0 5.78 GB file
8.08 GB
Q3_0 8.09 GB file
10.39 GB
Q4_0 Current
12.71 GB
Q4_XS 10.41 GB file
12.71 GB
Q5_0 12.72 GB file
15.02 GB
Q6_0 15.03 GB file
17.33 GB
Q8_0 19.66 GB file
21.96 GB
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Frequently Asked Questions

Can I run MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF Q4_0 on a consumer GPU?
Yes! At 12.71 GB VRAM required, a single high-end consumer GPU like the RTX 4090 (24GB) can handle this workload. You can also use multiple GPUs for tensor parallelism.
What happens if I don't have enough VRAM?
If your GPU VRAM is insufficient, llama.cpp and similar tools will offload model layers to system RAM (CPU inference). This is much slower — expect 10-50× the generation latency compared to full GPU inference.
Can I use multiple GPUs to run MN-Rocinante-18.5B-v1.1-Story-Wizard-ED1-Instruct-GGUF?
Yes! Tools like llama.cpp, vLLM, and Ollama support tensor parallelism across multiple GPUs. For example, 2× RTX 3090 (24GB each) gives you 48GB total VRAM, which can run many large models.
Is Q4_0 quality good enough for production?
Q4_K_M is an excellent balance of quality and performance. Perplexity tests show minimal degradation (< 2%) vs FP16 for most models. Suitable for most production applications.