ProductNVIDIA® A40 GPU Computing Accelerator - 48GB GDDR6 - PCIe 4.0 x16 - Passive Cooling (w/o CEC)NVIDIA® RTX A6000 - 48GB GDDR6 - PCIe 4.0 x16 - Active Cooling (4xDP)
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Main Specifications
Product Series Nvidia A40
Core Type NVIDIA TENSOR
Host Interface PCI Express 4.0 x16PCI Express 4.0 x16
GPU Architecture Ampere
Product Type Workstation
Product Line NVIDIA Professional Graphics
Memory Technology GDDR6
Memory Capacity 48 GB
Detailed Specifications
Streaming Processor Cores 10752 CUDA Cores10752 Shading Units
NVIDIA Tensor Cores 336 Tensor Cores336
NVIDIA RT Cores 84 RT Cores84
Memory Clock Speed 2000 MHz 16 Gbps effective
Memory Interface 384-bit384-bit
Memory Speeds (GT/s) 14.5Gbps GDDR6
Max Memory Size 48 GB GDDR6 with error-correcting code (ECC)
Max Memory Bandwidth 696 GB/s
Total NVLink Bandwidth NVIDIA NVLink 112.5 GB/s (bidirectional) PCIe Gen4 16 GB/s
NVIDIA CUDA™ Technology Yes
Transistor Count 28.3 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.
Cooling Passive
Dual Slot 2-slot Low-profile
Dimensions 4.4" (H) x 10.5" (L)4.4" (H) x 10.5" (L)
Lithography Samsung 8nmSamsung 8nm
Supplementary Power Connectors 1x 8-pin CPU (EPS12V)1x 8-pin EPS
Max Graphics Card Power (W) 300W300W
Processor Ampere (GA102)
Memory Bandwidth 768 GB/s
Core Clock Speed 1455 MHz Base Clock
1860 MHz Boost Clock
L2 Cache Size 6 MB
API Support CUDA 8.5, OpenCL 2.0
Shader Model 6.5, OpenGL 4.6, DirectX 12 Ultimate (12_2), Vulkan 1.2
Texture Fill Rate 625 GTexel/s
Graphics Resolution 7680 x 4320 x36 bpp at 60 Hz
Peak Double Precision FP64 Performance 1,250 GFLOPS (1:32)
Peak Single Precision FP32 Performance 38.7 TFLOPS
Peak Half Precision FP16 Performance 40.00 TFLOPS (1:1)
Multi-GPU Scalability NVLINK 2-way low profile (2-slot and 3-slot bridges) connects 2x NVIDIA RTX A6000
NVLink Interconnect 112.5 GB/s (bidirectional)
VR Ready Yes
Vulkan API 1.2
DisplayPort Output 4x DisplayPort 1.4a
Minimum Recommended Power, Single Card (W) 700W
Minimum Recommended Power, 2-Way (W) 850
Minimum Recommended Power, 3-Way (W) 1000
Minimum Recommended Power, 4-Way (W) 1200
Thermal Solution Active Heatsink
Slot Height 2-Slot
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