Wek W Q8_0 21B Parameters

VRAM Requirements for
ERNIE-4.5-21B-A3B-Thinking-Q8_0-GGUF Q8_0

To run ERNIE-4.5-21B-A3B-Thinking-Q8_0-GGUF locally at Q8_0 quantization, you need at minimum 24.65 GB of GPU VRAM.

24.65 GB
Required VRAM
22.31 GB
File Size
8K tokens
Context Window
21B
Parameters
Estimated VRAM Required
24.65
GB
Prosumer / Workstation
0 16GB
RTX 3080 48GB
A6000 80GB+

Recommended GPU Configurations

Budget $1,200 – $1,800

2× RTX 3090 (48GB total)

48 GB

Dual-GPU via tensor parallelism. Best cost per GB at this tier.

Balanced $4,000 – $5,500

NVIDIA A6000 (48GB)

48 GB

Single-card 48GB pro GPU. Clean setup, no multi-GPU overhead.

Ultimate $8,000 – $12,000

NVIDIA A100 40GB SXM

40 GB HBM2e

Data-centre HBM2e bandwidth. Dramatically faster throughput.

📊 VRAM Calculation Breakdown

Model File Size (Q8_0) 22.31 GB
Context Overhead (8,192 tokens × 21B × 2 ÷ 1M) 0.344 GB
System Buffer (OS + CUDA runtime) 2.00 GB
Total Required VRAM 24.65 GB

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ERNIE-4.5-21B-A3B-Thinking-Q8_0-GGUF — Other Quantizations

Q8_0 Current
24.65 GB
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Frequently Asked Questions

Can I run ERNIE-4.5-21B-A3B-Thinking-Q8_0-GGUF Q8_0 on a consumer GPU?
Running ERNIE-4.5-21B-A3B-Thinking-Q8_0-GGUF Q8_0 locally requires 24.65 GB VRAM, which exceeds consumer GPUs. You'll need prosumer cards like the NVIDIA A6000 (48GB) or an A100 (80GB).
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 ERNIE-4.5-21B-A3B-Thinking-Q8_0-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 Q8_0 quality good enough for production?
Q8_0 produces near-lossless quality compared to FP16. It's widely used in production deployments where quality is critical and you can afford the extra VRAM.