NVIDIA Tesla C870 vs ATI Stream Processor

NVIDIA Tesla C870 $1,499
ATI Stream Processor
128 Shaders
2GB GDDR3
600MHz
240 Shaders
1GB GDDR3
600MHz
Peak Performance
0.37 TOPS
INT32
Peak Performance
0.29 TFLOPS
FP32
FP32
0.37 TFLOPS
FP32
0.29 TFLOPS
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-
-
-
Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
171W
TDP
165W
Power Connectors
2x 6-Pin
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-
-
Power Connectors
1x 6-Pin
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-
-
GB6 OpenCL N/A
0%
GB6 OpenCL N/A
0%
GB6 Metal N/A
0%
GB6 Metal N/A
0%
GB6 Vulkan N/A
0%
GB6 Vulkan N/A
0%
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
ATI
Chip Designer
NVIDIA
Chip Designer
ATI
Architecture
Tesla
Architecture
R500
Family
Tesla
Family
FireStream
Codename
NV50
G80
-
-
Codename
Rodin
R580
Variant
R580 XTX GL
Market Segment
Server
Market Segment
Server
Release Date
5/2/2007
Release Date
1/1/2006
Foundry
TSMC
-
Foundry
TSMC
-
Fabrication Node
90nm
-
Fabrication Node
90nm
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Die Size
484 mm²
-
Die Size
352 mm²
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Transistor Count
681 Million
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Transistor Count
384 Million
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Transistor Density
1.41M/mm²
-
Transistor Density
1.09M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
128 Shaders
-
Shading Units
240 Shaders
-
Texture Mapping Units
32 TMUs
Texture Mapping Units
-
Render Output Units
24 ROPs
Render Output Units
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-
-
-
-
-
-
-
-
Streaming Multiprocessors
16 SMs
-
-
-
-
Compute Units
6 CUs
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-
-
-
-
-
-
-
-
1440MHz Shader
-
600MHz
-
-
-
600MHz
Peak Performance
0.37 TOPS
INT32
Peak Performance
0.29 TFLOPS
FP32
-
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-
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-
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FP32
0.37 TFLOPS
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-
FP32
0.29 TFLOPS
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-
-
-
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INT32
0.37 TOPS
-
-
-
-
-
-
Pixel Fillrate
14.4 GPixel/s
Pixel Fillrate
-
-
-
-
-
Texture Fillrate
19.2 GTexel/s
Texture Fillrate
-
-
-
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-
L1
-
-
-
Unknown
L1
-
-
-
Unknown
L2
96KB Shared
L2
Unknown
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-
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2GB
GDDR3
-
1GB
GDDR3
-
Bus Width
384Bit
Bus Width
256Bit
Clock
800MHz
Transfer Rate
1.6GT/s
Bandwidth
76.8GB/s
Clock
1300MHz
Transfer Rate
2.6GT/s
Bandwidth
83.2GB/s
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TDP
171W
TDP
165W
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No Ports
-
1x S-Video
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-
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-
2x DVI-I Dual-Link
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-
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Max Resolution
Unknown
Max Resolution
2560x1600
Max Resolution Refresh Rate
-
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
-
-
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
Unknown
Multi Monitor Support
2
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-
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No Encoders
-
No Encoders
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No Decoders
No Decoders
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Direct X
11
Direct 3D
10_0
Direct X
9
Direct 3D
9_3
OpenGL
3.3
OpenCL
1.1
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-
OpenGL
2.1
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-
-
-
Shader Model
4.0
CUDA
1.0
-
-
PureVideo HD
VP1
-
-
Shader Model
3.0
-
-
GFX
2
-
-
-
-
-
-
-
1x Fan
-
-
-
1x Fan
Power Connectors
-
-
2x 6-Pin
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-
-
-
Power Connectors
-
-
1x 6-Pin
-
-
-
-
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
1.0
PCIe Lanes
16
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-
-
-
Multi GPU Support
Supported
-
-
Height
111 mm (4.37 in)
Width
312 mm (12.28 in)
Depth
38 mm (1.5 in)
Height
111 mm (4.37 in)
Width
241 mm (9.49 in)
Depth
37 mm (1.46 in)
Change Comparison