Tesla K40 vs Tesla K80
Tesla K40
Tesla K80
|
2880 Shaders
12GB GDDR5
617MHz
|
2x 2496 Shaders
2x 12GB GDDR5
875MHz
|
|
FP32
3.56 TFLOPS
|
FP32
8.74 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
300W
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Power Connectors
1x 6-Pin
1x 8-Pin
-
-
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Power Connectors
-
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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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
2x 561 mm²
-
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Transistor Count
7.1 Billion
-
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Transistor Count
2x 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
-
|
Shading Units
2x 2496 Shaders
-
|
|
Texture Mapping Units
240 TMUs
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Texture Mapping Units
2x 208 TMUs
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|
Render Output Units
48 ROPs
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Render Output Units
2x 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
2x 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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-
-
575MHz Base
617MHz
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-
-
560MHz Base
875MHz
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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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-
-
-
|
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FP32
3.56 TFLOPS
|
FP32
8.74 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
1.19 TFLOPS
-
|
FP64
2.91 TFLOPS
-
|
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-
-
|
-
-
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-
-
-
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-
-
-
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Pixel Fillrate
29.633 GPixel/s
|
Pixel Fillrate
35 GPixel/s
|
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-
-
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-
-
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Texture Fillrate
148.164 GTexel/s
|
Texture Fillrate
182 GTexel/s
|
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-
-
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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
-
|
2x 12GB
GDDR5
-
|
|
Bus Width
384Bit
|
Bus Width
384Bit
|
|
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
288GB/s
|
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
240GB/s
|
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
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TDP
235W
|
TDP
300W
|
|
-
-
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-
-
|
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-
-
-
-
-
-
-
-
-
-
-
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-
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No Ports
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
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-
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-
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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
-
|
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
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
|
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)
-
-
-
-
-
|
|
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
3.7
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
|
-
-
-
-
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-
-
-
-
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Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
Power Connectors
-
-
-
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
-
-
|
|
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
40 mm (1.57 in)
|
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