Volko76 BF16 8B Parameters

VRAM Requirements for
OpenCoder-8B-Instruct-GGUF BF16

To run OpenCoder-8B-Instruct-GGUF locally at BF16 quantization, you need at minimum 18.13 GB of GPU VRAM.

18.13 GB
Required VRAM
16 GB
File Size
8K tokens
Context Window
8B
Parameters
Estimated VRAM Required
18.13
GB
High-End Consumer GPU
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 (BF16) 16 GB
Context Overhead (8,192 tokens × 8B × 2 ÷ 1M) 0.131 GB
System Buffer (OS + CUDA runtime) 2.00 GB
Total Required VRAM 18.13 GB

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Use the interactive calculator to compare OpenCoder-8B-Instruct-GGUF across all available formats.

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OpenCoder-8B-Instruct-GGUF — Other Quantizations

Q2_K 2.5 GB file
4.63 GB
Q3_K_M 3.5 GB file
5.63 GB
BF16 Current
18.13 GB
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Frequently Asked Questions

Can I run OpenCoder-8B-Instruct-GGUF BF16 on a consumer GPU?
Yes! At 18.13 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 OpenCoder-8B-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 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.