Qwen3 32B GGUF — Hardware Requirements & GPU Compatibility
Chat
31.4K downloads
65 likesSpecifications
- Publisher
- Alibaba
- Family
- Qwen
- Parameters
- 32B
- Release Date
- 2025-05-09
- License
- Apache 2.0
Get Started
HuggingFace
How Much VRAM Does Qwen3 32B GGUF Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| Q4_K_M | 4.80 | 21.1 GB | — | 19.20 GB | 4-bit medium quantization — most popular sweet spot |
| Q5_0 | 5.00 | 22 GB | — | 20.00 GB | 5-bit legacy quantization |
| Q5_K_M | 5.70 | 25.1 GB | — | 22.80 GB | 5-bit medium quantization — good quality/size tradeoff |
| Q6_K | 6.60 | 29.0 GB | — | 26.40 GB | 6-bit quantization, very good quality |
| Q8_0 | 8.00 | 35.2 GB | — | 32.00 GB | 8-bit quantization, near-lossless |
Which GPUs Can Run Qwen3 32B GGUF?
Q4_K_M · 21.1 GBQwen3 32B GGUF (Q4_K_M) requires 21.1 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 28+ GB is recommended. 5 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.
Runs great
— Plenty of headroom
Decent
— Enough VRAM, may be tightWhich Devices Can Run Qwen3 32B GGUF?
Q4_K_M · 21.1 GB21 devices with unified memory can run Qwen3 32B GGUF, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Mini M4 Pro (24 GB).
Runs great
— Plenty of headroomRelated Models
Frequently Asked Questions
- How much VRAM does Qwen3 32B GGUF need?
Qwen3 32B GGUF requires 21.1 GB of VRAM at Q4_K_M, or 35.2 GB at Q8_0.
VRAM = Weights + KV Cache + Overhead
Weights = 32B × 4.8 bits ÷ 8 = 19.2 GB
KV Cache + Overhead ≈ 1.9 GB (at 2K context + ~0.3 GB framework)
VRAM usage by quantization
Q4_K_M21.1 GB- Can NVIDIA GeForce RTX 4090 run Qwen3 32B GGUF?
Yes, at Q5_0 (22 GB) or lower. Higher quantizations like Q5_K_M (25.1 GB) exceed the NVIDIA GeForce RTX 4090's 24 GB.
- What's the best quantization for Qwen3 32B GGUF?
For Qwen3 32B GGUF, Q4_K_M (21.1 GB) offers the best balance of quality and VRAM usage. Q5_0 (22 GB) provides better quality if you have the VRAM.
VRAM requirement by quantization
Q4_K_M ★21.1 GB~89%Q5_022.0 GB~90%Q5_K_M25.1 GB~92%Q6_K29.0 GB~95%Q8_035.2 GB~99%★ Recommended — best balance of quality and VRAM usage.
- Can I run Qwen3 32B GGUF on a Mac?
Qwen3 32B GGUF requires at least 21.1 GB at Q4_K_M, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.
- Can I run Qwen3 32B GGUF locally?
Yes — Qwen3 32B GGUF can run locally on consumer hardware. At Q4_K_M quantization it needs 21.1 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Qwen3 32B GGUF?
At Q4_K_M, Qwen3 32B GGUF can reach ~138 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~31 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.
tok/s = (bandwidth GB/s ÷ model GB) × efficiency
Example: AMD Instinct MI300X → 5300 ÷ 21.1 × 0.55 = ~138 tok/s
Estimated speed at Q4_K_M (21.1 GB)
AMD Instinct MI300X~138 tok/sNVIDIA GeForce RTX 4090~31 tok/sNVIDIA H100 SXM~103 tok/sAMD Instinct MI250X~85 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Qwen3 32B GGUF?
At Q4_K_M, the download is about 19.20 GB. The full-precision Q8_0 version is 32.00 GB.
- Which GPUs can run Qwen3 32B GGUF?
5 consumer GPUs can run Qwen3 32B GGUF at Q4_K_M (21.1 GB). Top options include NVIDIA GeForce RTX 5090, AMD Radeon RX 7900 XTX, NVIDIA GeForce RTX 3090. 1 GPU have plenty of headroom for comfortable inference.
- Which devices can run Qwen3 32B GGUF?
21 devices with unified memory can run Qwen3 32B GGUF at Q4_K_M (21.1 GB), including Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB), Mac Pro M2 Ultra (192 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.