Can I Run Qwen 3 235B A22B Instruct 2507 on a Apple M5 Ultra (256GB)?
Runs at Q8_0 — near-lossless quality.
4 quantizations fit your 256GB
| Quant | Min VRAM | Recommended | File size | Headroom |
|---|---|---|---|---|
| Q8_0BEST | 250.7 GB | 252.2 GB | 249.7 GB | +5.3 GB |
| Q6_K | 194.6 GB | 196.1 GB | 193.6 GB | +61.4 GB |
| Q5_K_M | 167.8 GB | 169.3 GB | 166.8 GB | +88.2 GB |
| Q4_K_M | 143.5 GB | 145.0 GB | 142.5 GB | +112.5 GB |
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FAQ
Can the Apple M5 Ultra (256GB) run Qwen 3 235B A22B Instruct 2507?
Yes. The Apple M5 Ultra (256GB)'s 256GB of unified memory is enough to run Qwen 3 235B A22B Instruct 2507 at Q8_0 quantization (250.7GB required).
What's the best quantization to use?
Q8_0 is the highest-precision quantization that fits in your 256GB. It uses about 250.7GB of memory and 252.2GB recommended for comfortable inference.
What if I need more headroom for context length?
KV cache memory grows with context length. The numbers above assume a baseline 2K-4K context. For long-context use (32K+), add another 2-6GB depending on the model architecture.