Tesla K20X vs Tesla K40 Active

Tesla K20X
Tesla K40 Active
2688 Shaders
6GB GDDR5
786MHz
2880 Shaders
12GB GDDR5
875MHz
FP32
4.22 TFLOPS
FP32
5.04 TFLOPS
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
235W
TDP
235W
Power Connectors
1x 6-Pin
1x 8-Pin
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Power Connectors
1x 6-Pin
1x 8-Pin
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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
Kepler
Architecture
Kepler
Family
Tesla K
Family
Tesla K
Codename
NVF0
GK110
Variant
GK110-890-KA-A1
Codename
NVF0
GK110
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Market Segment
Server
Market Segment
Server
Release Date
11/12/2012
Release Date
10/8/2013
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
28nm
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Die Size
561 mm²
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Die Size
561 mm²
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Transistor Count
7.1 Billion
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Transistor Count
7.1 Billion
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Transistor Density
12.62M/mm²
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Transistor Density
12.62M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
2688 Shaders
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Shading Units
2880 Shaders
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Texture Mapping Units
224 TMUs
Texture Mapping Units
240 TMUs
Render Output Units
48 ROPs
Render Output Units
48 ROPs
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Streaming Multiprocessors
14 SMs
Streaming Multiprocessors
15 SMs
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732MHz Base
786MHz
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745MHz Base
875MHz
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FP32
4.22 TFLOPS
FP32
5.04 TFLOPS
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FP64
1.41 TFLOPS
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FP64
1.68 TFLOPS
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Pixel Fillrate
37.724 GPixel/s
Pixel Fillrate
42 GPixel/s
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Texture Fillrate
176.045 GTexel/s
Texture Fillrate
210 GTexel/s
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L1
48KB/SM Tex
16KB/SM
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L1
48KB/SM Tex
16KB/SM
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L2
1.5MB Shared
L2
1.5MB Shared
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6GB
GDDR5
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12GB
GDDR5
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Bus Width
384Bit
Bus Width
384Bit
Clock
1300MHz
Transfer Rate
5.2GT/s
Bandwidth
249.6GB/s
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
288GB/s
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TDP
235W
TDP
235W
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No Ports
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No Ports
Max Resolution
Unknown
Max Resolution
Unknown
Max Resolution Refresh Rate
-
Max Resolution Refresh Rate
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Variable Refresh Rate
G-Sync
FreeSync
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Variable Refresh Rate
G-Sync
FreeSync
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
Unknown
Multi Monitor Support
Unknown
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Model
NVENC 1
Model
NVENC 1
Codec
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AVC (H.264)
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Codec
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AVC (H.264)
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Model
NVDEC 1
Model
NVDEC 1
Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Direct X
12
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
6.5
CUDA
3.5
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PureVideo HD
VP5
VDPAU
Feature Set D
Shader Model
6.5
CUDA
3.5
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PureVideo HD
VP5
VDPAU
Feature Set D
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1x Fan
Power Connectors
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1x 6-Pin
1x 8-Pin
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Power Connectors
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1x 6-Pin
1x 8-Pin
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Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
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Multi GPU Support
Supported
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Height
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
39 mm (1.54 in)
Height
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
39 mm (1.54 in)
Change Results