| Product | NVIDIA® A40 GPU Computing Accelerator - 48GB GDDR6 - PCIe 4.0 x16 - Passive Cooling | NVIDIA® L40 ADA GPU Computing Accelerator - 48GB GDDR6 - PCIe 4.0 x16 - Passive Cooling | NVIDIA® L40S ADA GPU Computing Accelerator - 48GB GDDR6 - PCIe 4.0 x16 - Passive Cooling | NVIDIA® RTX A4000 - 16GB GDDR6 - PCIe 4.0 x16 - Active Cooling (4xDP) |
| Action | Select | Select | Select | Select |
| Main Specifications | ||||
| Product Series | Nvidia A40 | Nvidia L40 | Nvidia L40S | |
| Core Type | NVIDIA TENSOR | NVIDIA TENSOR | NVIDIA TENSOR | |
| Host Interface | PCI Express 4.0 x16 | PCI Express 4.0 x16 | PCI Express 4.0 x16 | PCI Express 4.0 x16 |
| GPU Architecture | Ampere | Ada Lovelace | Ada Lovelace | |
| Product Type | Workstation | |||
| Product Line | NVIDIA Professional Graphics | |||
| Memory Technology | GDDR6 with ECC | |||
| Memory Capacity | 16 GB GDDR6 with ECC | |||
| Max Displays | 4 Displays | |||
| Detailed Specifications | ||||
| Streaming Processor Cores | 10752 CUDA Cores | 18,176 | 6144 CUDA Cores | |
| NVIDIA Tensor Cores | 336 Tensor Cores | 568 | Gen 4 | 192 | |
| NVIDIA RT Cores | 84 RT Cores | 142 | Gen 3 | 48 | |
| Memory Interface | 384-bit | 256-bit | ||
| Memory Speeds (GT/s) | 14.5Gbps GDDR6 | |||
| Max Memory Size | 48 GB GDDR6 with error-correcting code (ECC) | 48 GB GDDR6 with ECC | 48GB GDDR6 with ECC | |
| Max Memory Bandwidth | 696 GB/s | 864 GB/s | ||
| INT8 Tensor Core | 733 teraFLOPS | |||
| TF32 Tensor Core | 183 teraFLOPS | |||
| FP32 | 91.6 teraFLOPS | |||
| Peak BFLOAT16 Tensor Core | 362.05 teraFLOPS | |||
| Peak FP16 Tensor Core | 362.05 teraFLOPS | |||
| Peak FP8 Tensor Core | 733 teraFLOPS | |||
| Peak INT4 Tensor Core | 733 teraFLOPS | |||
| Total NVLink Bandwidth | NVIDIA NVLink 112.5 GB/s (bidirectional) PCIe Gen4 16 GB/s | Not supported | ||
| Multi-Instance GPUs | No | |||
| NVIDIA CUDA™ Technology | Yes | |||
| vGPU Software Support | NVIDIA vPC/vApps, NVIDIA RTX Virtual Workstation (vWS) | |||
| NVENC | NVDEC | 3x | 3x (Includes AV1 Encode & Decode) | 3x l 3x (includes AV1 encode and decode) | ||
| Secure Boot with Root of Trust | Yes | Yes | ||
| NEBS Ready | Yes / Level 3 | Level 3 | ||
| Transistor Count | 17.4 Billion | |||
| DisplayPort Connectors | 3x DisplayPort 1.4 A40 is configured for virtualization by default with physical display connectors disabled. The display outputs can be enabled via management software tools. | 4x DP 1.4a | 4x DisplayPort 1.4a | |
| Cooling | Passive | Passive | Passive | |
| Dual Slot | 2-slot Low-profile | Yes | ||
| Dimensions | 4.4" (H) x 10.5" (L) | 4.4" (H) x 10.5" (L) | 4.4" (H) x 10.5" (L) | 4.4” H x 9.5” L |
| Form Factor | PCIe | |||
| Lithography | Samsung 8nm | 8nm | ||
| Supplementary Power Connectors | 1x 8-pin CPU (EPS12V) | 1x 16-pin PCIe CEM5 | 1x 16-pin | 1x 6-pin PCIe |
| Max Graphics Card Power (W) | 300W | 300W | 350W | 140W |
| Processor | Ampere (GA104) | |||
| Memory Bandwidth | 448 GB/sec | |||
| Graphics Resolution | Max Digital Resolution: 7680 x 4320 x36 bpp at 60 Hz | |||
| Deep Learning TFLOPS | 153.4 TFLOPS | |||
| DisplayPort Output | 4x DisplayPort 1.4a | |||
| Minimum Recommended Power, Single Card (W) | 300W | |||
| Minimum Recommended Power, 2-Way (W) | 500 | |||
| Minimum Recommended Power, 3-Way (W) | 850 | |||
| Minimum Recommended Power, 4-Way (W) | 1000 | |||
| Thermal Solution | Active Heatsink | |||
| Slot Height | Single Slot | |||
| Action | Select | Select | Select | Select |