Qwen3 4B Instruct 2507 — Hardware Requirements & GPU Compatibility
Chat
Qwen3 4B Instruct 2507 is a July 2025 refresh of Alibaba's compact 4-billion-parameter chat model from the Qwen3 family. This updated release brings improved instruction following and conversational quality while remaining lightweight enough to run on most modern GPUs and even some higher-end integrated graphics setups. With its modest size, the 4B Instruct 2507 strikes a practical balance between capability and resource efficiency. It is well suited for everyday chat, summarization, and light assistant tasks on consumer hardware, making it one of the more accessible entry points into the Qwen3 lineup.
4.7M downloads
872 likesSpecifications
- Publisher
- Alibaba
- Family
- Qwen
- Parameters
- 4.0B
- Architecture
- Qwen3ForCausalLM
- Context Length
- 262,144 tokens
- Vocabulary Size
- 151,936
- Release Date
- 2025-09-17
- License
- Apache 2.0
Get Started
HuggingFace
How Much VRAM Does Qwen3 4B Instruct 2507 Need?
Select a quantization to see compatible GPUs below.
| Quantization | Bits | VRAM | + Context | File Size | Quality |
|---|---|---|---|---|---|
| Q6_K | 6.60 | 3.8 GB | 27.8 GB | 3.32 GB | 6-bit quantization, very good quality |
| Q8_0 | 8.00 | 4.5 GB | 28.5 GB | 4.02 GB | 8-bit quantization, near-lossless |
Which GPUs Can Run Qwen3 4B Instruct 2507?
Q6_K · 3.8 GBQwen3 4B Instruct 2507 (Q6_K) requires 3.8 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 5+ GB is recommended. Using the full 262K context window can add up to 24.0 GB, bringing total usage to 27.8 GB. 35 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.
Runs great
— Plenty of headroomWhich Devices Can Run Qwen3 4B Instruct 2507?
Q6_K · 3.8 GB33 devices with unified memory can run Qwen3 4B Instruct 2507, including NVIDIA DGX H100, NVIDIA DGX A100 640GB.
Runs great
— Plenty of headroomRelated Models
Derivatives (12)
Frequently Asked Questions
- How much VRAM does Qwen3 4B Instruct 2507 need?
Qwen3 4B Instruct 2507 requires 3.8 GB of VRAM at Q6_K, or 4.5 GB at Q8_0. Full 262K context adds up to 24.0 GB (27.8 GB total).
VRAM = Weights + KV Cache + Overhead
Weights = 4.0B × 6.6 bits ÷ 8 = 3.3 GB
KV Cache + Overhead ≈ 0.5 GB (at 2K context + ~0.3 GB framework)
KV Cache + Overhead ≈ 24.5 GB (at full 262K context)
VRAM usage by quantization
Q6_K3.8 GBQ6_K + full context27.8 GB- What's the best quantization for Qwen3 4B Instruct 2507?
For Qwen3 4B Instruct 2507, Q8_0 (4.5 GB) offers the best balance of quality and VRAM usage. The smallest option is Q6_K at 3.8 GB.
VRAM requirement by quantization
Q6_K3.8 GBQ8_0 ★4.5 GB★ Recommended — best balance of quality and VRAM usage.
- Can I run Qwen3 4B Instruct 2507 on a Mac?
Qwen3 4B Instruct 2507 requires at least 3.8 GB at Q6_K, 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 4B Instruct 2507 locally?
Yes — Qwen3 4B Instruct 2507 can run locally on consumer hardware. At Q6_K quantization it needs 3.8 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.
- How fast is Qwen3 4B Instruct 2507?
At Q6_K, Qwen3 4B Instruct 2507 can reach ~765 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~172 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 ÷ 3.8 × 0.55 = ~765 tok/s
Estimated speed at Q6_K (3.8 GB)
~765 tok/s~172 tok/s~572 tok/s~473 tok/sReal-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
- What's the download size of Qwen3 4B Instruct 2507?
At Q6_K, the download is about 3.32 GB. The full-precision Q8_0 version is 4.02 GB.
- Which GPUs can run Qwen3 4B Instruct 2507?
35 consumer GPUs can run Qwen3 4B Instruct 2507 at Q6_K (3.8 GB). Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 35 GPUs have plenty of headroom for comfortable inference.
- Which devices can run Qwen3 4B Instruct 2507?
33 devices with unified memory can run Qwen3 4B Instruct 2507 at Q6_K (3.8 GB), including Mac Mini M4 (16 GB), Mac Mini M4 (32 GB), Mac Mini M4 Pro (24 GB), Mac Mini M4 Pro (48 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.