Can I Run / Qwen 3 Next 80B A3B / on Apple M3 Ultra (64GB)

Can I Run Qwen 3 Next 80B A3B on a Apple M3 Ultra (64GB)?

Yes

Runs at Q5_K_M — good quality with reasonable headroom.

Model size
80.0B
GPU memory
64.0GB
Smallest quant
Q4_K_M
Best fit
Q5_K_M

2 quantizations fit your 64.0GB

QuantMin VRAMRecommendedFile sizeHeadroom
Q5_K_MBEST57.8 GB59.3 GB56.8 GB+6.2 GB
Q4_K_M49.5 GB51.0 GB48.5 GB+14.5 GB

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Full model details
Qwen 3 Next 80B A3B

All quant variants, benchmark scores, and use-case tags.

Best models for this GPU
Apple M3 Ultra (64GB)

Top-ranked open-source models that fit in 64.0GB.

FAQ

Can the Apple M3 Ultra (64GB) run Qwen 3 Next 80B A3B?

Yes. The Apple M3 Ultra (64GB)'s 64.0GB of unified memory is enough to run Qwen 3 Next 80B A3B at Q5_K_M quantization (57.8GB required).

What's the best quantization to use?

Q5_K_M is the highest-precision quantization that fits in your 64.0GB. It uses about 57.8GB of memory and 59.3GB 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.