NVIDIA A100 PCIe 80 GB vs NVIDIA A40 PCIe
What is the difference between NVIDIA A100 PCIe 80 GB and NVIDIA A40 PCIe. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GA100 | GPU Name | GA102 |
| Ampere | Architecture | Ampere |
| TSMC | Foundry | Samsung |
| 7 nm | Process Size | 8 nm |
| 54,200 million | Transistors | 28,300 million |
| 826 mm² | Die Size | 628 mm² |
Graphics Card
| Jun 28th, 2021 | Release Date | Oct 5th, 2020 |
| Tesla (Axx) | Family | Tesla (Axx) |
| Active | Production | Active |
| PCIe 4.0 x16 | Bus Interface | PCIe 4.0 x16 |
Memory
| 80 GB | Memory Size | 48 GB |
| HBM2e | Memory Type | GDDR6 |
| 5120 bit | Memory Bus | 384 bit |
| 2,039 GB/s | Bandwidth | 695.8 GB/s |
Performance
| 225.6 GPixel/s | Pixel fillrate | 194.9 GPixel/s |
| 609.1 GTexel/s | Texture fillrate | 584.6 GTexel/s |
| 77.97 TFLOPS (4:1) | FP16 (half) performance | 37.42 TFLOPS (1:1) |
| 19.49 TFLOPS | FP32 (float) performance | 37.42 TFLOPS |
| 9.746 TFLOPS (1:2) | FP64 (double) performance | 1,169 GFLOPS (1:32) |
Clock Speeds
| 1065 MHz | Base Clock | 1305 MHz |
| 1410 MHz | Boost Clock | 1740 MHz |
| 1593 MHz 3.2 Gbps effective | Memory Clock | 1812 MHz 14.5 Gbps effective |
Render Config
| 6912 | Shading Units | 10752 |
| 432 | TMUs | 336 |
| 160 | ROPs | 112 |
| 192 KB (per SM) | L1 Cache | 128 KB (per SM) |
| 80 MB | L2 Cache | 6 MB |
| 108 | SM Count | 84 |
| 432 | Tensor Cores | 336 |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 267 mm 10.5 inches | Length | 267 mm 10.5 inches |
| 250 W | Thermal design power (TDP) | 300 W |
| 600 W | Suggested PSU | 700 W |
| No outputs | Display Connectors | 3x DisplayPort |
| 8-pin EPS | Power Connectors | 8-pin EPS |
API support
| N/A | DirectX | 12 Ultimate (12_2) |
| N/A | OpenGL | 4.6 |
| 3.0 | OpenCL | 3.0 |
| N/A | Vulkan | 1.2 |
| N/A | Shader Model | 6.6 |
| 8.0 | CUDA | 8.6 |