Phi-4 14B on Apple M3 Pro (18GB Unified)
Apple M3 Pro (18GB Unified) can run Phi-4 14B at 5 tok/s at Q3_K_M, though performance is marginal. Consider a higher-end GPU for better results.
Model Size
14.7B
Device VRAM
18 GB
Bandwidth
150 GB/s
Quantizations Tested
1
Performance by Quantization
Each row shows Phi-4 14B performance at a different quality level on Apple M3 Pro (18GB Unified).
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q3_K_M | 5 tok/s | 1600ms | ✓ Yes | Marginal | estimated |
Notes
Q3_K_M
Fits at Q3. Very slow. Marginal for chat and coding.
About Phi-4 14B
Phi-4 14B (14.7B) is a reasoning, coding, chat model. Microsoft's efficient reasoning and coding model with strong performance per parameter.
View all Phi-4 14B hardware options →About Apple M3 Pro (18GB Unified)
Apple M3 Pro (18GB Unified) has 18 GB at 150 GB/s. Available in MacBook Pro 14", MacBook Pro 16".
See all models Apple M3 Pro (18GB Unified) can run →Source: MLX performance estimates (2026-03-15)
Data last updated: 2026-03-15