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NVIDIA A100 40 GB (PCIe) vs NVIDIA A40
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Best GPUs for deep learning, AI development, compute in 2023–2024. Recommended GPU & hardware for AI training, inference (LLMs, generative AI). GPU training, inference benchmarks using PyTorch, TensorFlow for computer vision (CV), NLP, text-to-speech, etc.
We benchmark these GPUs and compare AI performance (deep learning training; FP16, FP32, PyTorch, TensorFlow), 3d rendering, Cryo-EM performance in the most popular apps (Octane, VRay, Redshift, Blender, Luxmark, Unreal Engine, Relion Cryo-EM).
Our benchmarks will help you decide which GPU (NVIDIA RTX 4090/4080, H100 Hopper, H200, A100, RTX 6000 Ada, A6000, A5000, or RTX 6000 ADA Lovelace) is the best GPU for your needs. We provide an in-depth analysis of the AI performance of each graphic card's performance so you can make the most informed decision possible. We offer deep learning and 3d rendering benchmarks that will help you get the most out of your hardware.
Looking for a GPU workstation or server for AI/ML, design, rendering, simulation or molecular dynamics? Explore BIZON AI workstations or GPU servers. Contact us today or explore our various customizable AI solutions.
Featured GPU benchmarks:
- NVIDIA H100 vs. A100 vs. RTX 6000 Ada
- NVIDIA RTX 4090 vs. RTX 4080 vs. RTX 3090
- NVIDIA RTX 3080 vs. 3080 Ti vs. RTX 3090
- NVIDIA RTX 3090 vs. NVIDIA A6000
- NVIDIA A6000 vs. A5000 vs. NVIDIA RTX 3090
- NVIDIA A100 vs. NVIDIA A6000
- NVIDIA RTX 2080 Ti vs. Titan RTX vs Quadro RTX8000
Benchmarks
Deep Learning GPU Benchmarks 2024–2025 [Updated]
Resnet50 (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
2179
NVIDIA A40
1262
4 GPU
NVIDIA A100 40 GB (PCIe)
8561
NVIDIA A40
5641
8 GPU
NVIDIA A100 40 GB (PCIe)
16797
NVIDIA A40
n/a
Resnet50 (FP16 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Resnet50 (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
1001
NVIDIA A40
431
4 GPU
NVIDIA A100 40 GB (PCIe)
3849
NVIDIA A40
2134
8 GPU
NVIDIA A100 40 GB (PCIe)
7557
NVIDIA A40
n/a
Resnet50 (FP32 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Resnet152 (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
930
NVIDIA A40
511
4 GPU
NVIDIA A100 40 GB (PCIe)
3557
NVIDIA A40
2285
8 GPU
NVIDIA A100 40 GB (PCIe)
6809
NVIDIA A40
n/a
Resnet152 (FP16 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Resnet152 (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
409
NVIDIA A40
166
4 GPU
NVIDIA A100 40 GB (PCIe)
1498
NVIDIA A40
822
8 GPU
NVIDIA A100 40 GB (PCIe)
2851
NVIDIA A40
n/a
Resnet152 (FP32 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Inception V3 (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
1283
NVIDIA A40
761
4 GPU
NVIDIA A100 40 GB (PCIe)
5218
NVIDIA A40
3402
8 GPU
NVIDIA A100 40 GB (PCIe)
10122
NVIDIA A40
n/a
Inception V3 (FP16 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Inception V3 (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
658
NVIDIA A40
273
4 GPU
NVIDIA A100 40 GB (PCIe)
2568
NVIDIA A40
1349
8 GPU
NVIDIA A100 40 GB (PCIe)
5058
NVIDIA A40
n/a
Inception V3 (FP32 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Inception V4 (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
616
NVIDIA A40
353
4 GPU
NVIDIA A100 40 GB (PCIe)
2377
NVIDIA A40
1575
8 GPU
NVIDIA A100 40 GB (PCIe)
4532
NVIDIA A40
n/a
Inception V4 (FP16 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Inception V4 (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
290
NVIDIA A40
122
4 GPU
NVIDIA A100 40 GB (PCIe)
1031
NVIDIA A40
602
8 GPU
NVIDIA A100 40 GB (PCIe)
1950
NVIDIA A40
n/a
Inception V4 (FP32 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
VGG16 (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
1249
NVIDIA A40
450
4 GPU
NVIDIA A100 40 GB (PCIe)
4989
NVIDIA A40
2012
8 GPU
NVIDIA A100 40 GB (PCIe)
10733
NVIDIA A40
n/a
VGG16 (FP16 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
VGG16 (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
529
NVIDIA A40
248
4 GPU
NVIDIA A100 40 GB (PCIe)
2215
NVIDIA A40
1223
8 GPU
NVIDIA A100 40 GB (PCIe)
4278
NVIDIA A40
n/a
VGG16 (FP32 XLA)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Googlenet (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Googlenet (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
3D, GPU Rendering Benchmarks 2024–2025 [Updated]
V-Ray
1 GPU
NVIDIA A100 40 GB (PCIe)
1555
NVIDIA A40
2540
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Octane
1 GPU
NVIDIA A100 40 GB (PCIe)
498
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Redshift
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Blender
1 GPU
NVIDIA A100 40 GB (PCIe)
3788
NVIDIA A40
4439.17
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Luxmark
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Unreal Engine
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
RELION Cryo-EM Benchmarks 2024-2025 [Updated]
Total run time
1 GPU
NVIDIA A100 40 GB (PCIe)
178.9
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
50.3
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
BERT LARGE Training, Inference Benchmark 2024-2025 [Updated]
Training Time (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Performance (FP16)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Training Time (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Performance (FP32)
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
8 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Llama3 70B Inference Benchmark 2024–2025 [Updated]
Eval rate
1 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
2 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
4 GPU
NVIDIA A100 40 GB (PCIe)
n/a
NVIDIA A40
n/a
Technical Specifications
Board Design
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Length | 267 mm | 267 mm |
| Outputs | No outputs | 3x DisplayPort |
| Power Connectors | 8-pin EPS | 8-pin EPS |
| Slot width | Dual-slot | Dual-slot |
| TDP | 250 W | 300 W |
Clock Speeds
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Boost Clock | 1410 MHz | 1740 MHz |
| GPU Clock | 765 MHz | 1305 MHz |
| Memory Clock | 2400 MHz | 14500 MHz |
Graphics Card
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Generation | Tesla (Axx) | Tesla (Axx) |
Graphics Features
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| OpenCL | 2.0 | 3.0 |
| CUDA | 8.0 | 8.6 |
| DirectX | 12 Ultimate (12_2) | |
| OpenGL | 4.6 | |
| Shader Model | 6.6 |
Graphics Processor
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Architecture | Ampere | Ampere |
| Die Size | 826 mm2 | 628 mm2 |
| GPU Name | GA100 | GA102 |
| Process Size | 7 nm | 8 nm |
| Transistors | 54200 million | 28300 million |
Memory
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Bandwidth | 1555 GB/s | 695.8 GB/s |
| Memory Bus | 5120 bit | 384 bit |
| Memory Size | 40 GB | 48 GB |
| Memory Type | HBM2e | GDDR6 |
Render Config
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| ROPs | 160 | 112 |
| Shading Units/ CUDA Cores | 6912 | 10752 |
| TMUs | 432 | 336 |
| Tensor Cores | 432 | 336 |
| RT Cores | 84 |
Theoretical Performance
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| FP16 (half) performance | 77.97 TFLOPS | 37.42 TFLOPS |
| FP32 (float) performance | 19.49 TFLOPS | 37.42 TFLOPS |
| FP64 (double) performance | 9746 GFLOPS | 584.6 GFLOPS |
| Pixel Rate | 225.6 GPixel/s | 194.9 GPixel/s |
| Texture Rate | 609.1 GTexel/s | 584.6 GTexel/s |
Price
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Release Date | Jun 22nd, 2020 | Oct 5th, 2020 |
Test bench configuration
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Hardware | BIZON X5000 More details | BIZON X5000 More details |
| Software | 3D Rendering: Nvidia Driver: 461.09 VRay Benchmark: 5 Octane Benchmark: 2020.1.5 Redshift Benchmark: 3.0.28 Demo Blender: 2.90 Luxmark: 3.1 | 3D Rendering: Nvidia Driver: 461.40 VRay Benchmark: 5 Octane Benchmark: 2020.1.5 Redshift Benchmark: 3.0.28 Demo Blender: 2.90 Luxmark: 3.1 |
Recommended hardware
| NVIDIA A100 40 GB (PCIe) | NVIDIA A40 | |
|---|---|---|
| Best GPU workstations | BIZON X5500 | BIZON X5500 |
| Best NVIDIA GPU servers | BIZON X7000 | BIZON X7000 |