Can I Run Nemotron 3 Super on NVIDIA L40S?
Written by Jakub Rusinowski · Last updated August 15, 2026
No — Nemotron 3 Super 120B-A12B at Q4_K_M needs 76.1 GB at 8K context (72.5 GB weights + 3.6 GB KV cache/overhead), and the NVIDIA L40S's 48 GB leaves it ~28.1 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 |
Nemotron 3 Super 120B-A12B on the NVIDIA L40S: VRAM by quantization
| Quant | VRAM needed | Fits 48 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 243.7 GB | ✗ No | — | — |
| Q8_0 | 131.2 GB | ✗ No | — | — |
| Q6_K | 102.1 GB | ✗ No | — | — |
| Q5_K_M | 88.7 GB | ✗ No | — | — |
| Q4_K_M | 76.1 GB | ✗ No | — | — |
| Q3_K_M | 54.8 GB | ✗ No | — | — |
| Q2_K | 43.1 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 76.1 GB ✗ · 32K 84.7 GB ✗ · 128K 118.9 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? Nemotron 3 Super 120B-A12B on 64 GB of system RAM, CPU only: runs.
Why It Does Not Fit
Every Nemotron 3 Super variant requires more VRAM than the NVIDIA L40S provides (48 GB).
Nearest GPU That Fits
NVIDIA A100 80GB (PCIe) (80 GB VRAM).
Nemotron 3 Super 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
Can I run Nemotron 3 Super on the NVIDIA L40S?
No — Nemotron 3 Super 120B-A12B at Q4_K_M needs 76.1 GB at 8K context (72.5 GB weights + 3.6 GB KV cache/overhead), and the NVIDIA L40S's 48 GB leaves it ~28.1 GB short. The cheapest card that runs it is the NVIDIA A100 80GB (PCIe) (80 GB).
What's the cheapest GPU that runs Nemotron 3 Super?
The NVIDIA A100 80GB (PCIe) (80 GB VRAM) is the cheapest upgrade that fits it.
Nemotron 3 Super on Other GPUs
- Nemotron 3 Super on NVIDIA RTX 6000 Ada Generation
- Nemotron 3 Super on Apple M3 Pro
- Nemotron 3 Super on NVIDIA GeForce RTX 5090
- Nemotron 3 Super on Apple M4
- Nemotron 3 Super 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? | Nemotron 3 Super Model Page | NVIDIA L40S GPU Page | Check Your Hardware