Can I Run Mistral Small 4 on NVIDIA L40S?
Written by Jakub Rusinowski · Last updated July 21, 2026
No — Mistral Small 4 119B-A6.5B at Q4_K_M needs 75.5 GB at 8K context (71.8 GB weights + 3.7 GB KV cache/overhead), and the NVIDIA L40S's 48 GB leaves it ~27.5 GB short. The cheapest card that runs it is the NVIDIA A100 80GB (PCIe) (80 GB).
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NVIDIA L40S Specs
| VRAM | 48 GB |
| Memory Bandwidth | 864 GB/s |
Mistral Small 4 119B-A6.5B on the NVIDIA L40S: VRAM by quantization
| Quant | VRAM needed | Fits 48 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 241.7 GB | ✗ No | — | — |
| Q8_0 | 130.1 GB | ✗ No | — | — |
| Q6_K | 101.2 GB | ✗ No | — | — |
| Q5_K_M | 88 GB | ✗ No | — | — |
| Q4_K_M | 75.5 GB | ✗ No | — | — |
| Q3_K_M | 54.4 GB | ✗ No | — | — |
| Q2_K | 42.8 GB | ✓ Yes | 16K | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 48 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA L40S: 8K 75.5 GB ✗ · 32K 84.1 GB ✗ · 128K 118.3 GB ✗. Past 8K it no longer fits 48 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Mistral Small 4 119B-A6.5B on 64 GB of system RAM, CPU only: runs.
Why It Does Not Fit
Every Mistral Small 4 variant requires more VRAM than the NVIDIA L40S provides (48 GB).
Nearest GPU That Fits
NVIDIA A100 80GB (PCIe) (80 GB VRAM).
Mistral Small 4 needs ~76 GB but this GPU has 48 GB. Rent a A100 (80 GB)-class GPU by the hour instead of buying one:
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FAQ
Does the NVIDIA L40S have enough VRAM for Mistral Small 4?
No — Mistral Small 4 119B-A6.5B at Q4_K_M needs 75.5 GB at 8K context (71.8 GB weights + 3.7 GB KV cache/overhead), and the NVIDIA L40S's 48 GB leaves it ~27.5 GB short. The cheapest card that runs it is the NVIDIA A100 80GB (PCIe) (80 GB).
Which GPU can actually run Mistral Small 4?
The NVIDIA A100 80GB (PCIe) (80 GB VRAM) is the cheapest upgrade that fits it.
Mistral Small 4 on Other GPUs
- Mistral Small 4 on NVIDIA RTX 6000 Ada Generation
- Mistral Small 4 on Apple M3 Pro
- Mistral Small 4 on NVIDIA GeForce RTX 5090
- Mistral Small 4 on Apple M4
- Mistral Small 4 on Apple M2 Pro
Popular Models on the NVIDIA L40S
VRAM Tier
Troubleshooting
- CUDA out of memory — why it happens and how to fix it
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | Mistral Small 4 Model Page | NVIDIA L40S GPU Page | VRAM calculator | Check Your Hardware