联想思维系统NVIDIA L40S 48GB PCIE GEN4无源GPU用于数据中心AI和图形加速度
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  • 零件编号:NVIDIA L40S 48 GB
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Lenovo ThinkSystem NVIDIA L40S 48 GB PCIe Gen4 Passive GPU for Data Center AI & Graphics Acceleration

Keywords

ThinkSystem NVIDIA L40S, 48 GB PCIe Gen4 Passive GPU, generative AI inference, high‑performance AI graphics accelerator

Description

The ThinkSystem NVIDIA L40S 48 GB PCIe Gen4 Passive GPU is engineered for next‑generation data center requirements, supporting multi‑workload acceleration including generative AI, large language model (LLM) inference and training, high‑end graphics, and video processing.

Built on the Ada Lovelace architecture, it delivers exceptional AI compute and graphics throughput with passive cooling suitable for server racks.

Featuring 48 GB of GDDR6 ECC memory with an impressive 864 GB/s memory bandwidth, this GPU enables large model execution and high-resolution rendering workloads.

With 18,176 CUDA cores and fourth-gen Tensor Cores plus RT Cores, the L40S accelerates AI and visual compute tasks across data center environments .

This passive thermal design ensures quiet, reliable operation in densely packed server environments, making it ideal for Lenovo ThinkSystem server chassis like SR650 V4, SR850 V4 and SR860 V4 .

The L40S outperforms many previous-generation accelerators, often exceeding the capabilities of NVIDIA A100 GPUs for certain AI inference and graphics use cases, while delivering broad compatibility through Lenovo’s product ecosystem and support for enterprise-grade software stacks .

Key Features
  • 48 GB GDDR6 ECC memory with up to 864 GB/s bandwidth
  • 18,176 CUDA cores, fourth‑generation Tensor Cores, third‑generation RT Cores
  • Passive dual-slot PCIe 4.0 x16 form factor suited for rack servers
  • NVIDIA Ada Lovelace architecture with Transformer Engine for generative AI acceleration
  • Supports CUDA 12.0, DirectX 12 Ultimate, OpenCL 3.0, OpenGL 4.6, Vulkan 1.3
  • 4× DisplayPort outputs, ECC memory for enhanced reliability
  • Server-grade compatibility with Lenovo ThinkSystem series including SR650 V4, SR850 V4, SR860 V4
Configuration
ComponentSpecification
ProductThinkSystem NVIDIA L40S 48 GB Passive GPU
Bus InterfacePCIe Gen4 x16 (dual-slot, passive)
Memory48 GB GDDR6 ECC, memory bandwidth 864 GB/s
CUDA Cores18,176 CUDA; 4th‑gen Tensor Cores; 3rd‑gen RT Cores
CoolingPassive (no fan)
Display Outputs4× DisplayPort
Software / API SupportCUDA 12.0, DirectX 12 Ultimate, OpenCL 3.0, Vulkan 1.3
Form FactorStandard server dual‑slot PCIe card
Power ConsumptionMax approx. 300–350 W
WarrantyTypically 1 year (Lenovo service)
Compatibility
The Lenovo ThinkSystem NVIDIA L40S GPU is supported in Lenovo servers — including SR650 V4, SR850 V4 and SR860 V4 — via official Lenovo product guides.

It integrates seamlessly with enterprise AI, virtualization, rendering and VDI platforms. NVIDIA’s L40S platform supports NVIDIA AI Enterprise, vGPU (vPC/vApps), Omniverse, and other software solutions for flexible deployment.

Usage Scenarios

This high-capacity GPU is ideal for **generative AI inference**, LLM acceleration, and deep learning tasks in data centers that require large memory and AI compute density. The transformer engine and fourth-gen Tensor Cores make the L40S especially effective for high-throughput inference workloads.

The card is also well-suited to **virtual workstation applications**, including remote rendering, VR/AR, and complex graphics in virtualized environments using NVIDIA vWS or Omniverse.

Thanks to passive cooling, the L40S fits well into dense rack configurations within Lenovo ThinkSystem servers, minimizing noise and maximizing airflow efficiency.

Finally, it serves well for **video encode/decode**, media processing and broadcasting use cases, supporting hardware NVENC/NVDEC with AV1 formats, ECC memory and robust driver support .

Frequently Asked Questions
Q1: Is the L40S passive GPU suited for high-density rack servers?
Yes — the passive dual‑slot design makes it ideal for Lenovo ThinkSystem servers, offering heat dissipation via system airflow rather than onboard fans, reducing noise and improving reliability .
Q2: How much AI performance does it offer compared to A100?
In many AI inference and generative workloads, the L40S with its Ada Lovelace Tensor Cores and Transformer Engine delivers performance that exceeds the A100, especially for large language model tasks.
Q3: What software frameworks and APIs are supported?
Supports CUDA 12.0, DirectX 12 Ultimate, OpenCL 3.0, OpenGL 4.6, and Vulkan 1.3. Fully compatible with NVIDIA AI Enterprise stack, Omniverse, and NVIDIA vGPU software (vPC/vApps, vWS) .
Q4: What power draw and form factor should I expect?
Standard passive PCIe Gen4 x16 card (dual-slot), with maximum power consumption around 300–350 W. Designed to use system chassis airflow, maintaining data center compatibility and efficiency .

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