Tesla K40X vs Tesla K20 Active
Tesla K40X
Tesla K20 Active
|
2880 Shaders
12GB GDDR5
875MHz
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2496 Shaders
5GB GDDR5
758MHz
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|
FP32
5.04 TFLOPS
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FP32
3.78 TFLOPS
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-
-
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-
-
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Form Factor
PCIe Card
2.0-Slots
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Form Factor
PCIe Card
2.0-Slots
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TDP
235W
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TDP
225W
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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%
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GB5 OpenCL - N/A
0%
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GB5 CUDA - N/A
0%
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GB5 CUDA - N/A
0%
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GB5 Metal - N/A
0%
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GB5 Metal - N/A
0%
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GB5 Vulkan - N/A
0%
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GB5 Vulkan - N/A
0%
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OCT 2020.1 - N/A
0%
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OCT 2020.1 - N/A
0%
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OCT Metal - N/A
0%
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OCT Metal - N/A
0%
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Manufacturer
NVIDIA
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Manufacturer
NVIDIA
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Chip Designer
NVIDIA
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Chip Designer
NVIDIA
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Architecture
Kepler
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Architecture
Kepler
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Family
Tesla K
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Family
Tesla K
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Codename
NVF0
GK180
-
-
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Codename
NVF0
GK110
Variant
GK110-885-KA-A1
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Market Segment
Server
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Market Segment
Server
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Release Date
11/22/2013
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Release Date
11/12/2012
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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
-
|
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
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Shading Units
2880 Shaders
-
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Shading Units
2496 Shaders
-
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Texture Mapping Units
240 TMUs
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Texture Mapping Units
208 TMUs
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Render Output Units
48 ROPs
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Render Output Units
40 ROPs
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-
-
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-
-
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-
-
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-
-
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Streaming Multiprocessors
15 SMs
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Streaming Multiprocessors
13 SMs
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
745MHz Base
875MHz
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-
-
706MHz Base
758MHz
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-
-
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-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
|
|
-
-
-
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-
-
-
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FP32
5.04 TFLOPS
|
FP32
3.78 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
1.68 TFLOPS
-
|
FP64
1.26 TFLOPS
-
|
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-
-
|
-
-
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-
-
-
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-
-
-
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Pixel Fillrate
42 GPixel/s
|
Pixel Fillrate
30.32 GPixel/s
|
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-
-
|
-
-
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Texture Fillrate
210 GTexel/s
|
Texture Fillrate
157.664 GTexel/s
|
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-
-
|
-
-
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L1
48KB/SM Tex
16KB/SM
-
-
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L1
48KB/SM Tex
16KB/SM
-
-
|
|
L2
1.5MB Shared
|
L2
1.5MB Shared
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|
-
-
-
|
-
-
-
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12GB
GDDR5
-
|
5GB
GDDR5
-
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Bus Width
384Bit
|
Bus Width
320Bit
|
|
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
288GB/s
|
Clock
1300MHz
Transfer Rate
5.2GT/s
Bandwidth
208GB/s
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
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TDP
235W
|
TDP
225W
|
|
-
-
|
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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No Ports
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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No Ports
|
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Max Resolution
Unknown
|
Max Resolution
Unknown
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Max Resolution Refresh Rate
-
|
Max Resolution Refresh Rate
-
|
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Variable Refresh Rate
G-Sync
FreeSync
-
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
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Multi Monitor Support
Unknown
|
Multi Monitor Support
Unknown
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|
-
-
|
-
-
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Model
NVENC 1
|
Model
NVENC 1
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Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
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Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
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Model
NVDEC 1
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Model
NVDEC 1
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
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
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
Shader Model
6.5
CUDA
3.5
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
|
-
-
-
-
|
-
-
-
1x Fan
|
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
|
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
-
-
|
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)
|
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