Can I Run DeepSeek V4 Flash on a Apple M3 Ultra (64GB)?
Runs at Q8_0 — near-lossless quality.
4 quantizations fit your 64.0GB
| Quant | Min VRAM | Recommended | File size | Headroom |
|---|---|---|---|---|
| Q8_0BEST | 40.3 GB | 41.8 GB | 39.3 GB | +23.7 GB |
| Q6_K | 31.5 GB | 33.0 GB | 30.5 GB | +32.5 GB |
| Q5_K_M | 27.3 GB | 28.8 GB | 26.3 GB | +36.7 GB |
| Q4_K_M | 23.4 GB | 24.9 GB | 22.4 GB | +40.6 GB |
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All quant variants, benchmark scores, and use-case tags.
Top-ranked open-source models that fit in 64.0GB.
FAQ
Can the Apple M3 Ultra (64GB) run DeepSeek V4 Flash?
Yes. The Apple M3 Ultra (64GB)'s 64.0GB of unified memory is enough to run DeepSeek V4 Flash at Q8_0 quantization (40.3GB required).
What's the best quantization to use?
Q8_0 is the highest-precision quantization that fits in your 64.0GB. It uses about 40.3GB of memory and 41.8GB 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.