Apple M4 Max meets the minimum VRAM requirement for Q4 inference of lmsys/vicuna-7b-v1.5. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
Apple M4 Max can run lmsys/vicuna-7b-v1.5 with Q4 quantization. At approximately 77 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 124GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 128GB | 76.62 tok/s | ✅ Fits comfortably |
| Q8 | 7GB | 128GB | 48.45 tok/s | ✅ Fits comfortably |
| FP16 | 15GB | 128GB | 27.28 tok/s | ✅ Fits comfortably |