Microsoft Q1_0 4B Parameters

VRAM Requirements for
phi-4-gguf Q1_0

To run phi-4-gguf locally at Q1_0 quantization, you need at minimum 6.07 GB of GPU VRAM.

6.07 GB
Required VRAM
4 GB
File Size
8K tokens
Context Window
4B
Parameters
Estimated VRAM Required
6.07
GB
Consumer Friendly
0 16GB
RTX 3080 48GB
A6000 80GB+

Recommended GPU Configurations

Budget $350 – $500

RTX 3080 (10GB)

10 GB

Used market gem. Tight on VRAM but viable for this workload.

Balanced $699 – $799

RTX 4070 Ti (12GB)

12 GB

Strong inference GPU. Handles 7-13B models comfortably.

Ultimate $1,599 – $1,999

RTX 4090 (24GB)

24 GB

Best consumer GPU. Breeze through 13B models at any quantization.

📊 VRAM Calculation Breakdown

Model File Size (Q1_0) 4 GB
Context Overhead (8,192 tokens × 4B × 2 ÷ 1M) 0.066 GB
System Buffer (OS + CUDA runtime) 2.00 GB
Total Required VRAM 6.07 GB

Try a Different Quantization

Use the interactive calculator to compare phi-4-gguf across all available formats.

Open Live Calculator →

phi-4-gguf — Other Quantizations

Q2_0 1.25 GB file
3.32 GB
Q2_K 1.25 GB file
3.32 GB
Q3_K 1.75 GB file
3.82 GB
Q3_K_L 1.75 GB file
3.82 GB
Q3_K_S 1.75 GB file
3.82 GB
Q3_M 1.75 GB file
3.82 GB
Q3_S 1.75 GB file
3.82 GB
Q3_XS 1.75 GB file
3.82 GB
Q3_XXS 1.75 GB file
3.82 GB
Q4_XS 2.25 GB file
4.32 GB
Q4_NL 2.25 GB file
4.32 GB
Q4_K_S 2.25 GB file
4.32 GB
Q4_K 2.25 GB file
4.32 GB
Q4_1 2.25 GB file
4.32 GB
Q4_0 2.25 GB file
4.32 GB
Q5_K_S 2.75 GB file
4.82 GB
Q5_1 2.75 GB file
4.82 GB
Q5_K 2.75 GB file
4.82 GB
Q5_0 2.75 GB file
4.82 GB
Q6_K 3.25 GB file
5.32 GB
Q1_0 Current
6.07 GB
Q8_0 4.25 GB file
6.32 GB
BF16 8 GB file
10.07 GB
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Frequently Asked Questions

Can I run phi-4-gguf Q1_0 on a consumer GPU?
Yes! At 6.07 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 phi-4-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 Q1_0 quality good enough for production?
Q1_0 is suitable for specialized use cases. Check community benchmarks for specific quality metrics.