NVIDIA A40 PCIe vs NVIDIA H100 PCIe
GPU Specs Compare
Graphics Card
Release Date
Oct 2020
Mar 2022
Generation
Tesla
Tesla Hopper
Type
Desktop
AI GPU
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1305 MHz
1095 MHz
Boost Clock
1740 MHz
1755 MHz
Memory Clock
1812 MHz
1593 MHz
Memory
Memory Size
48GB
80GB
Memory Type
GDDR6
HBM2e
Memory Bus
384bit
5120bit
Bandwidth
695.8GB/s
2039GB/s
Render Config
SM Count
84
114
Shading Units
10752
14592
TMUs
336
456
ROPs
112
24
Tensor Cores
336
456
RT Cores
84
-
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
6 MB
50 MB
Theoretical Performance
Pixel Rate
194.9 GPixel/s
42.12 GPixel/s
Texture Rate
584.6 GTexel/s
800.3 GTexel/s
FP16 (half)
37.42 TFLOPS
204.9 TFLOPS
FP32 (float)
37.42 TFLOPS
51.22 TFLOPS
FP64 (double)
584.6 GFLOPS
25.61 TFLOPS
Graphics Processor
GPU Name
GA102
GH100
Architecture
Ampere
Hopper
Foundry
Samsung
TSMC
Process Size
8 nm
4 nm
Transistors
28.3 billion
80 billion
Die Size
628 mm²
814 mm²
Board Design
TDP
300W
350W
Suggested PSU
700 W
750 W
Outputs
3x DisplayPort 1.4a
No outputs
Power Connectors
8-pin EPS
1x 16-pin
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.6
9.0
Shader Model
6.6
N/A