mradermacher·Qwen

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF — Hardware Requirements & GPU Compatibility

Reasoning
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Specifications

Publisher
mradermacher
Family
Qwen
Parameters
27B
License
Apache 2.0

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How Much VRAM Does Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF Need?

Select a quantization to see compatible GPUs below.

QuantizationBitsVRAM
Q2_K3.4012.6 GB
Q3_K_S3.5013.0 GB
Q3_K_M3.9014.5 GB
Q4_K_M4.8017.8 GB
Q5_K_M5.7021.2 GB
Q6_K6.6024.5 GB
Q8_08.0029.7 GB

Which GPUs Can Run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

Q4_K_M · 17.8 GB

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF (Q4_K_M) requires 17.8 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 24+ GB is recommended. 6 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.

Which Devices Can Run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

Q4_K_M · 17.8 GB

21 devices with unified memory can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Mini M4 Pro (24 GB).

Related Models

Frequently Asked Questions

How much VRAM does Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF need?

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF requires 17.8 GB of VRAM at Q4_K_M, or 29.7 GB at Q8_0.

VRAM = Weights + KV Cache + Overhead

Weights = 27B × 4.8 bits ÷ 8 = 16.2 GB

KV Cache + Overhead 1.6 GB (at 2K context + ~0.3 GB framework)

VRAM usage by quantization

17.8 GB

Learn more about VRAM estimation →

Can NVIDIA GeForce RTX 4090 run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

Yes, at Q5_K_M (21.2 GB) or lower. Higher quantizations like Q6_K (24.5 GB) exceed the NVIDIA GeForce RTX 4090's 24 GB.

What's the best quantization for Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

For Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF, Q4_K_M (17.8 GB) offers the best balance of quality and VRAM usage. Q5_K_S (20.4 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 12.6 GB.

VRAM requirement by quantization

Q2_K
12.6 GB
Q3_K_L
15.2 GB
Q4_K_S
16.7 GB
Q4_K_M
17.8 GB
Q5_K_M
21.2 GB
Q8_0
29.7 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF on a Mac?

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF requires at least 12.6 GB at Q2_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 Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF locally?

Yes — Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF can run locally on consumer hardware. At Q4_K_M quantization it needs 17.8 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

At Q4_K_M, Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF can reach ~164 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~37 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 MI300X5300 ÷ 17.8 × 0.55 = ~164 tok/s

Estimated speed at Q4_K_M (17.8 GB)

~164 tok/s
~37 tok/s
~122 tok/s
~101 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

At Q4_K_M, the download is about 16.20 GB. The full-precision Q8_0 version is 27.00 GB. The smallest option (Q2_K) is 11.47 GB.

Which GPUs can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

6 consumer GPUs can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF at Q4_K_M (17.8 GB). Top options include NVIDIA GeForce RTX 5090, AMD Radeon RX 7900 XT, AMD Radeon RX 7900 XTX. 1 GPU have plenty of headroom for comfortable inference.

Which devices can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF?

21 devices with unified memory can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled GGUF at Q4_K_M (17.8 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.