H100 vs A40

H100
A40
14592 Shaders
80GB HBM2e
1755MHz
10752 Shaders
48GB GDDR6
1740MHz
FP32
51.22 TFLOPS
FP32
37.42 TFLOPS
FP16
102.44 TFLOPS
FP16
37.42 TFLOPS
Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
350W
TDP
300W
Power Connectors
-
-
-
1x 16-Pin 12VHPWR
Power Connectors
-
-
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
NVIDIA
Manufacturer
NVIDIA
Chip Designer
NVIDIA
Chip Designer
NVIDIA
Architecture
Hopper
Architecture
Ampere
Family
Server
Family
Server
Codename
NV180
GH100
-
-
Codename
NV172
GA102
Variant
GA102-895-A1
Market Segment
Server
Market Segment
Server
Release Date
3/22/2022
Release Date
10/5/2020
Foundry
TSMC
-
Foundry
Samsung
-
Fabrication Node
4N
-
Fabrication Node
8N
-
Die Size
814 mm²
-
Die Size
628 mm²
-
Transistor Count
80 Billion
-
Transistor Count
28.3 Billion
-
Transistor Density
98.28M/mm²
-
Transistor Density
45.04M/mm²
-
Form
PCIe Card
Form
PCIe Card
Shading Units
14592 Shaders
-
Shading Units
10752 Shaders
-
Texture Mapping Units
456 TMUs
Texture Mapping Units
336 TMUs
Render Output Units
24 ROPs
Render Output Units
112 ROPs
Tensor Cores
456 T-Cores
Tensor Cores
336 T-Cores
-
-
Ray-Tracing Cores
84 RT-Cores
Streaming Multiprocessors
114 SMs
Streaming Multiprocessors
84 SMs
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-
-
-
-
-
-
-
-
-
-
-
1620MHz Tensor
-
1065MHz Base
1755MHz
-
-
1305MHz Base
1740MHz
-
-
-
-
FP8
-
3025.8 TFLOPS Tensor
-
-
-
FP16
102.44 TFLOPS
1512.9 TFLOPS Tensor
FP16
37.42 TFLOPS
-
BF16
102.44 TFLOPS
1512.9 TFLOPS Tensor
-
-
-
FP32
51.22 TFLOPS
FP32
37.42 TFLOPS
TF32
756.45 TFLOPS
-
-
FP64
25.61 TFLOPS
51.22 TFLOPS Tensor
FP64
0.59 TFLOPS
-
INT8
3025.8 TOPS
-
-
-
-
-
Ray Tracing
54.8 TOPS Base Clock
73.1 TOPS
Pixel Fillrate
42.12 GPixel/s
Pixel Fillrate
194.88 GPixel/s
-
-
-
-
Texture Fillrate
800.28 GTexel/s
Texture Fillrate
584.64 GTexel/s
-
-
-
-
L1
64KB/SM Tex
256KB/SM
-
-
L1
64KB/SM Tex
128KB/SM
-
-
L2
50MB Shared
L2
6MB Shared
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-
-
-
-
-
80GB
HBM2e
-
48GB
GDDR6
-
Bus Width
5120Bit
Bus Width
384Bit
Clock
1593MHz
Transfer Rate
3.2GT/s
Bandwidth
2039GB/s
Clock
906MHz
Transfer Rate
7.2GT/s
Bandwidth
347.9GB/s
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TDP
350W
TDP
300W
-
-
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-
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-
-
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No Ports
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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3x DisplayPort 1.3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Max Resolution
Unknown
Max Resolution
7680x4320
Max Resolution Refresh Rate
-
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
G-Sync
FreeSync
-
Variable Refresh Rate
G-Sync
FreeSync
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Supported
Multi Monitor Support
Unknown
Multi Monitor Support
3
-
-
Content Protection
HDCP 2.3
No Encoders
-
Model
NVENC 7
-
-
-
-
-
-
-
-
-
-
-
-
-
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Codec
-
-
-
-
-
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AVC (H.264)
HEVC (H.265)
-
-
-
-
No Decoders
Model
NVDEC 5
-
-
-
-
-
-
-
-
-
-
-
-
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
VP8
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
-
-
-
-
Direct X
12
Direct 3D
12_2
-
-
OpenCL
3.0
-
-
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
-
-
CUDA
9.0
-
-
PureVideo HD
VP11
VDPAU
Feature Set K
Shader Model
6.6
CUDA
8.6
-
-
PureVideo HD
VP11
VDPAU
Feature Set K
-
-
-
-
-
-
-
-
Power Connectors
-
-
-
-
-
-
1x 16-Pin 12VHPWR
Power Connectors
-
-
-
-
1x 8-Pin EPS
-
-
Slots Required
2.0
PCIe Version
5.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
16
Multi GPU Support
Supported
-
-
Multi GPU Support
Supported
-
-
Height
111 mm (4.37 in)
Width
268 mm (10.55 in)
Depth
40 mm (1.57 in)
Height
112 mm (4.41 in)
Width
267 mm (10.51 in)
Depth
40 mm (1.57 in)
Change Results