Reyanshgupta BF16 4B Parameters

VRAM Requirements for
qwen-3.5-4b-primaryhealthcare-csci566 BF16

To run qwen-3.5-4b-primaryhealthcare-csci566 locally at BF16 quantization, you need at minimum 10.07 GB of GPU VRAM.

10.07 GB
Required VRAM
8 GB
File Size
8K tokens
Context Window
4B
Parameters
Estimated VRAM Required
10.07
GB
Mid-Range GPU Required
0 16GB
RTX 3080 48GB
A6000 80GB+

Recommended GPU Configurations

⚠️ 0.1 GB short
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 (BF16) 8 GB
Context Overhead (8,192 tokens × 4B × 2 ÷ 1M) 0.066 GB
System Buffer (OS + CUDA runtime) 2.00 GB
Total Required VRAM 10.07 GB

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Use the interactive calculator to compare qwen-3.5-4b-primaryhealthcare-csci566 across all available formats.

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qwen-3.5-4b-primaryhealthcare-csci566 — Other Quantizations

Q4_K_M 2.25 GB file
4.32 GB
BF16 Current
10.07 GB
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Frequently Asked Questions

Can I run qwen-3.5-4b-primaryhealthcare-csci566 BF16 on a consumer GPU?
Yes! At 10.07 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 qwen-3.5-4b-primaryhealthcare-csci566?
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 BF16 quality good enough for production?
FP16/BF16 is the standard precision used for production inference and serves as the quality baseline. All fine-tuned models are typically served at this precision.