NVIDIA A100 vs NVIDIA A40

Side-by-side comparison of specifications, performance, and efficiency.

Specifications

NVIDIA A100 NVIDIA A40
Architecture
Ampere Ampere
Launch Year
2020 2021
Form Factor
SXM PCIe
VRAM
80 GB48 GB
Memory Bandwidth
2.0 TB/s696 GB/s
TDP
400 W300 W
Process Node
7nm

Performance (TFLOPS)

NVIDIA A100 NVIDIA A40
FP64
9.7 TFlops
FP32
19.5 TFlops37.4 TFlops
FP16
312.0 TFlops149.7 TFlops
BF16
312.0 TFlops149.7 TFlops
INT8
624.0 TFlops299.3 TFlops

FLOPS by Precision

Efficiency — TDP vs FP32 Performance

Analysis

Most Efficient
NVIDIA A40
0.12 TFLOPS/W

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