NVIDIA GeForce RTX 4090 × Phi-4 14B
Can the RTX 4090 run Phi-4 14B?
Yes
Yes. The RTX 4090 can run Phi-4 14B at up to Q8_0 (needs ~18.6 GB of 22.8 GB usable), at an estimated ~79.9 tokens/sec at Q4_K_M.
Speed is estimated from memory bandwidth calibrated with a measured 186.21 tok/s Llama 2 7B Q4_0 result (source). No direct public benchmark of this exact pair is recorded yet.
By quantization (8K context)
| Quant | Memory needed | Fits? | Est. tok/s |
|---|---|---|---|
| Q3_K_M | 9.9 GB | ✅ | ~99.3 |
| Q4_K_M | 11.7 GB | ✅ | ~79.9 |
| Q5_K_M | 13.3 GB | ✅ | ~68.0 |
| Q6_K | 15.0 GB | ✅ | ~58.7 |
| Q8_0 | 18.6 GB | ✅ | ~45.6 |
| F16 | 32.8 GB | ❌ | — |
Fastest hardware for Phi-4 14B
- NVIDIA GeForce RTX 5090 — ~124 tok/s at Q4_K_M
- AMD Radeon RX 7900 XTX — ~79.1 tok/s at Q4_K_M
- NVIDIA GeForce RTX 5080 — ~78.1 tok/s at Q4_K_M
- NVIDIA GeForce RTX 5070 Ti — ~75.9 tok/s at Q4_K_M
- NVIDIA GeForce RTX 3080 10GB — ~74.5 tok/s at Q3_K_M
No suitable GPU? Rent one by the hour on Vast.ai or RunPod (affiliate links).
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