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Silver dual-slot PCIe card with four DisplayPort outputs and full-height bracket

NVIDIA

NVIDIA L40S 48GB AI accelerator card 900-2G133-0080-000

SKU CH-9EV2-EGKCE MPN 900-2G133-0080-000

AI accelerator card with 48 GB GDDR6 ECC memory, 18,176 CUDA cores and Tensor cores delivering 733 teraFLOPS FP16 performance in a dual-slot PCIe 4.0 x16 form factor

  • Graphics processorL40S
  • Memory capacity48 GB
  • Interface typePCI Express 4.0 x16
  • CUDA core count18176
  • Type of memoryGDDR6 w/ECC
  • Chipset makerNVIDIA
  • 18176 CUDA cores accelerate parallel workloads
  • 48GB GDDR6 memory with ECC supports large datasets
  • 6 teraFLOPS FP32 performance drives compute tasks
  • 1466 teraFLOPS FP8 Tensor throughput speeds AI inference
  • PCIe 4.0 x16 interface provides high bandwidth connectivity

NVIDIA L40S 48GB AI accelerator

The NVIDIA L40S is a professional AI accelerator card built on the Ada architecture. It delivers 18176 CUDA cores and 48GB of GDDR6 memory with ECC for data integrity. The dual-slot design fits standard server chassis and targets machine-learning training, inference and high-performance visualisation workloads.

PCI Express 4.0 x16 interface limits

The card connects through a PCI Express 4.0 x16 slot providing up to 864 GB/s of memory bandwidth. Host systems must supply a compatible 4.0 x16 link to avoid throughput bottlenecks. The 350W maximum power draw requires adequate auxiliary connectors and chassis cooling capacity. Dual-slot width restricts adjacent slot availability in dense configurations.

Upgrade from lower-memory compute cards

This model replaces accelerators with less VRAM when 48GB is needed for larger models or batch sizes. The jump is worth it when workloads exceed the frame-buffer capacity of smaller cards and demand the 91.6 teraFLOPS FP32 or 1466 teraFLOPS FP8 throughput. Buyers who need more than 48GB or require multi-GPU scaling beyond a single dual-slot form factor should evaluate alternative platforms.

How it compares

Measured against everything we stock in GPUs for AI & Data Centers, at today’s prices. Recalculated every night.

Price $6,366.99
Pricier than about 60% of the 36 comparable items (median $5,369.99).
Memory capacity 48 GB
Lower than about 64% of the 12 comparable items (median 79 GB).

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Specifications

Product
Brand nameNVIDIA
Model nameL40S
Part number900-2G133-0080-000
Memory
Type of memoryGDDR6 w/ECC
Memory clock864 GB/s
Graphics
Graphics processorL40S
Memory capacity48 GB
CUDA core count18176
Chipset makerNVIDIA
DirectX support12.07
Ports & slots
Interface typePCI Express 4.0 x16
DisplayPort connectors4
Size & build
Dimensions (l x h)Height: 4.4 in
Length:10.5 in
Slots occupiedDual
Shipping weight1.00 kg
Package size279 × 102 × 51 mm

Questions about this item

Should I pick the 48GB GDDR6 w/ECC version for large-model training?

The 48GB frame buffer with 864 GB/s bandwidth lets you hold larger batches and bigger layers on a single card, reducing the need for multi-GPU splitting.

What does the 91.6 teraFLOPS FP32 rating mean for real-time inference?

That peak throughput translates to high single-precision compute density for inference pipelines, letting you serve more requests per second within the 350W power envelope.

How does the PCI Express 4.0 x16 interface affect data throughput?

The x16 link provides up to 32 GB/s bidirectional bandwidth, which caps host-to-device transfer rates for dataset loading and model checkpointing.

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