NVIDIA L40S — Local LLM Performance & Compatibility

The mainstream rack-server inference card of the Ada generation: 48 GB GDDR6, passive cooling (needs server chassis airflow), widely available in 1–8× configurations from Dell, HPE, Lenovo, and Supermicro. A common building block for on-prem AI pilots because it slots into standard 2U servers without exotic power or cooling.

Technical Specifications

VRAM48 GB
Memory Bandwidth864 GB/s
TDP350 W
ArchitectureAda Lovelace AD102
Release Year2023
MSRP at Launch$7,499
Inference Speed (Llama 3.1 8B Q4_K_M)~130 tokens/sec
Inference Speed (Llama 3.3 70B Q4_K_M)~24 tokens/sec
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NVIDIA L40S 48GB
Launch MSRP: $7,499
2026 prices are volatile — check the current listing.
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LLMs Compatible with 48 GB VRAM

All models below run comfortably in 48 GB VRAM with Q4_K_M quantization.

Llama 467 GB VRAM (smallest variant — needs more VRAM or a lower quant) · Q4_K_M · ollama run llama4:scout
Llama 3.343 GB VRAM · Q2_K_XS (Tight) · ollama run llama3.3
Llama 3.1 Family6 GB VRAM · Q4_K_M · ollama run llama3.1
DeepSeek R120 GB VRAM · Q4_K_M · ollama run deepseek-r1:32b
Qwen 320 GB VRAM · Q4_K_M · ollama run qwen3:32b
Qwen 3.522 GB VRAM · Q4_K_M · ollama run qwen3.5:35b-a3b
Qwen 3.622 GB VRAM · Q4_K_M · ollama run qwen3.6:35b-a3b
Gemma 317 GB VRAM · Q4_K_M · ollama run gemma3:27b

Best Use Cases

Quick Start with Ollama

Install Ollama then run the recommended model for this GPU:

ollama run llama3.3:70b

FAQ

Can the NVIDIA L40S run local LLMs?

Yes — the NVIDIA L40S has 48 GB VRAM and runs The mainstream rack-server inference card of the Ada generation: 48 GB GDDR6, passive cooling (needs server chassis airf

How fast is the NVIDIA L40S for AI inference?

The NVIDIA L40S runs Llama 3.1 8B at ~130 tokens/sec with Q4_K_M quantization. For the 70B model it achieves ~24 tokens/sec.

What LLMs can I run on 48 GB VRAM?

With 48 GB you can run: Llama 4, Llama 3.3, Llama 3.1 Family, DeepSeek R1, Qwen 3. Use Ollama for the easiest setup: ollama run llama3.3:70b.

Can I Run It? — NVIDIA L40S

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