AMD Radeon RX 7900 XTX × Qwen3 14B
Can the RX 7900 XTX run Qwen3 14B?
Yes
Yes. The RX 7900 XTX can run Qwen3 14B at up to Q8_0 (needs ~18.3 GB of 22.8 GB usable), at an estimated ~78.5 tokens/sec at Q4_K_M.
Speed is estimated from memory bandwidth (no measured benchmark for this device). 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 | 9.6 GB | ✅ | ~97.7 |
| Q4_K_M | 11.4 GB | ✅ | ~78.5 |
| Q5_K_M | 13.0 GB | ✅ | ~66.8 |
| Q6_K | 14.7 GB | ✅ | ~57.7 |
| Q8_0 | 18.3 GB | ✅ | ~44.8 |
| F16 | 32.6 GB | ❌ | — |
Fastest hardware for Qwen3 14B
- NVIDIA GeForce RTX 5090 — ~124 tok/s at Q4_K_M
- NVIDIA GeForce RTX 4090 — ~79.3 tok/s at Q4_K_M
- NVIDIA GeForce RTX 5080 — ~77.5 tok/s at Q4_K_M
- NVIDIA GeForce RTX 5070 Ti — ~75.3 tok/s at Q4_K_M
- NVIDIA GeForce RTX 3080 10GB — ~74.0 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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