DeepSeek V4 Flash is a 304.18B-parameter mixture-of-experts model (13B active per token). At UD-IQ1_S it needs about 83.3 GB of memory. The NVIDIA RTX 5090 32GB has 30 GB usable, so it doesn't fit, even at its smallest quantization.
| Quantization | File size | Memory | Generation | First token | Source |
|---|---|---|---|---|---|
| UD-IQ1_S | 82.5 GB | Doesn't fit | Won't run | — | — |
| UD-IQ1_M | 86.9 GB | Doesn't fit | Won't run | — | — |
| UD-IQ2_XXS | 90.9 GB | Doesn't fit | Won't run | — | — |
| UD-IQ2_M | 90.9 GB | Doesn't fit | Won't run | — | — |
| UD-Q2_K_XL | 96.8 GB | Doesn't fit | Won't run | — | — |
| UD-IQ3_XXS | 104.2 GB | Doesn't fit | Won't run | — | — |
| UD-IQ3_S | 116.1 GB | Doesn't fit | Won't run | — | — |
| UD-Q3_K_M | 128.1 GB | Doesn't fit | Won't run | — | — |
| UD-Q3_K_XL | 128.2 GB | Doesn't fit | Won't run | — | — |
| UD-IQ4_XS | 136.7 GB | Doesn't fit | Won't run | — | — |
| UD-IQ4_NL | 136.7 GB | Doesn't fit | Won't run | — | — |
| UD-Q4_K_XL | 155.1 GB | Doesn't fit | Won't run | — | — |
| UD-Q8_K_XL | 161.9 GB | Doesn't fit | Won't run | — | — |
All models on the NVIDIA RTX 5090 32GB · DeepSeek V4 Flash on all hardware
Estimates for a short prompt on a single device. Measured numbers come from community benchmarks (r/LocalLLaMA, localscore.ai and more); others are derived from similar setups or projected from specs. Open source on GitHub.