Mistral on NVIDIA Blackwell
Can I run Mixtral 8x7B on an RTX 5070 Ti?
Not at Q4_K_M — it needs 28.2 GB against 14.2 GB available. You would need 2 of these cards.
Won't fit
28.2 GB of 14.2 GB · 198%029 GB
Weights
26.4 GB
KV cache
1.0 GB
Runtime overhead
0.8 GB
Over the limit
14.0 GB
Short by 14.0 GB. You can run it with 15 of 32 layers on the RTX 5070 Ti and the rest in system RAM, at roughly 9.44 tok/s — usable for batch work, painful for chat. A smaller quantisation or a shorter context is usually the better trade.
Generation9.44tok/s
Prompt processing1433tok/s
Max context0tokens
KV per 1K tokens0GB
Every quantisation of Mixtral 8x7B on a RTX 5070 Ti
Highlighted row is the highest quality that still fits at 8K context.
| Quantisation | bpw | Weights | Total | Verdict | Max ctx | tok/s |
|---|---|---|---|---|---|---|
| FP16 / BF16 | 16.00 | 87.0 GB | 88.8 GB | Won't fit | — | 1.94 |
| INT8 / W8A8 | 8.50 | 46.2 GB | 48.0 GB | Won't fit | — | 4.12 |
| Q8_0 (GGUF) | 8.50 | 46.2 GB | 48.0 GB | Won't fit | — | 4.12 |
| FP8 (E4M3) | 8.00 | 43.5 GB | 45.3 GB | Won't fit | — | 4.53 |
| Q6_K | 6.56 | 35.7 GB | 37.5 GB | Won't fit | — | 5.93 |
| Q5_K_M | 5.67 | 30.8 GB | 32.6 GB | Won't fit | — | 7.10 |
| Q5_K_S | 5.52 | 30.0 GB | 31.8 GB | Won't fit | — | 7.61 |
| Q4_K_M | 4.85 | 26.4 GB | 28.2 GB | Won't fit | — | 9.44 |
| Q4_K_S | 4.58 | 24.9 GB | 26.7 GB | Won't fit | — | 9.95 |
| Q4_0 | 4.55 | 24.8 GB | 26.6 GB | Won't fit | — | 10.5 |
| AWQ 4-bit | 4.25 | 23.5 GB | 25.3 GB | Won't fit | — | 11.1 |
| GPTQ 4-bit | 4.25 | 23.5 GB | 25.3 GB | Won't fit | — | 11.1 |
| MXFP4 | 4.25 | 23.5 GB | 25.3 GB | Won't fit | — | 11.1 |
| IQ4_XS | 4.25 | 23.1 GB | 25.0 GB | Won't fit | — | 11.8 |
| Q3_K_M | 3.91 | 21.3 GB | 23.1 GB | Won't fit | — | 13.5 |
| IQ3_M | 3.70 | 20.2 GB | 22.0 GB | Won't fit | — | 15.1 |
| IQ3_XXS | 3.06 | 16.7 GB | 18.5 GB | Won't fit | — | 23.8 |
| Q2_K | 2.63 | 14.4 GB | 16.2 GB | Won't fit | — | 40.6 |
| IQ2_XXS | 2.06 | 11.3 GB | 13.1 GB | Fits, but tight | 17K | 128 |
| IQ1_M | 1.75 | 9.6 GB | 11.4 GB | Runs comfortably | 30K | 145 |