Tesla K20X vs Radeon Sky 900
Tesla K20X
Radeon Sky 900
|
2688 Shaders
6GB GDDR5
786MHz
|
2x 1792 Shaders
2x 3GB GDDR5
950MHz
|
|
FP32
4.22 TFLOPS
|
FP32
6.81 TFLOPS
|
|
-
-
|
-
-
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
2.0-Slots
|
|
TDP
235W
|
TDP
300W
|
|
Power Connectors
1x 6-Pin
1x 8-Pin
-
-
|
Power Connectors
-
2x 8-Pin
-
-
|
|
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
AMD
|
|
Chip Designer
NVIDIA
|
Chip Designer
AMD
|
|
Architecture
Kepler
|
Architecture
GCN 1
|
|
Family
Tesla K
|
Family
Radeon Sky
|
|
Codename
NVF0
GK110
Variant
GK110-890-KA-A1
|
Codename
Tahiti
-
Variant
Tahiti Pro GL
|
|
Market Segment
Server
|
Market Segment
Server
|
|
Release Date
11/12/2012
|
Release Date
4/1/2013
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
28nm
-
|
Fabrication Node
28nm
-
|
|
Die Size
561 mm²
-
|
Die Size
2x 352 mm²
-
|
|
Transistor Count
7.1 Billion
-
|
Transistor Count
2x 4.3 Billion
-
|
|
Transistor Density
12.62M/mm²
-
|
Transistor Density
12.25M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
2688 Shaders
-
|
Shading Units
2x 1792 Shaders
-
|
|
Texture Mapping Units
224 TMUs
|
Texture Mapping Units
2x 112 TMUs
|
|
Render Output Units
48 ROPs
|
Render Output Units
2x 32 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Streaming Multiprocessors
14 SMs
|
-
-
|
|
-
-
|
Compute Units
2x 28 CUs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
732MHz Base
786MHz
|
-
-
825MHz Base
950MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
FP32
4.22 TFLOPS
|
FP32
6.81 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
1.41 TFLOPS
-
|
FP64
1.7 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
37.724 GPixel/s
|
Pixel Fillrate
30.4 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
176.045 GTexel/s
|
Texture Fillrate
106.4 GTexel/s
|
|
-
-
|
-
-
|
|
L1
48KB/SM Tex
16KB/SM
-
-
|
L1
-
-
16KB/CU
-
|
|
L2
1.5MB Shared
|
L2
768KB Shared
|
|
-
-
-
|
-
-
-
|
|
6GB
GDDR5
-
|
2x 3GB
GDDR5
-
|
|
Bus Width
384Bit
|
Bus Width
384Bit
|
|
Clock
1300MHz
Transfer Rate
5.2GT/s
Bandwidth
249.6GB/s
|
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
240GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
235W
|
TDP
300W
|
|
-
-
|
-
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
|
-
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
1x mini-DisplayPort 1.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
Max Resolution
Unknown
|
Max Resolution
4096x2160
|
|
Max Resolution Refresh Rate
-
|
Max Resolution Refresh Rate
60Hz
|
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
Variable Refresh Rate
-
-
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
Multi Monitor Support
Unknown
|
Multi Monitor Support
4
|
|
-
-
|
-
-
|
|
Model
NVENC 1
|
Model
VCE 1.0
|
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
|
|
Model
NVDEC 1
|
Model
UVD 3.2
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
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_1
|
|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
|
Shader Model
6.5
CUDA
3.5
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
Shader Model
6.5
-
-
GFX
6
-
-
-
-
|
|
-
-
-
-
|
-
-
-
-
|
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
Power Connectors
-
-
-
2x 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
Type
CrossFire XDMA
|
|
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
305 mm (12.01 in)
Depth
37 mm (1.46 in)
|
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