Radeon HD 6870 vs Radeon HD 5970

Radeon HD 6870
Radeon HD 5970
1120 Shaders
2GB GDDR5
900MHz
2x 1600 Shaders
2x 1GB GDDR5
725MHz
FP32
2.02 TFLOPS
FP32
4.64 TFLOPS
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
151W
TDP
294W
Power Connectors
2x 6-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
AMD
Manufacturer
ATI
Chip Designer
AMD
Chip Designer
ATI
Architecture
TeraScale 2
Architecture
TeraScale 2
Family
Radeon HD 6000
Family
Radeon HD 5000
Codename
Barts
RV940
Variant
Barts XT
Codename
Cypress
RV870
Variant
Hemlock XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
10/22/2010
Release Date
11/18/2009
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
40nm
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Fabrication Node
40nm
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Die Size
255 mm²
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Die Size
2x 334 mm²
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Transistor Count
1.7 Billion
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Transistor Count
2x 2.2 Billion
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Transistor Density
6.67M/mm²
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Transistor Density
6.45M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
1120 Shaders
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Shading Units
2x 1600 Shaders
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Texture Mapping Units
56 TMUs
Texture Mapping Units
2x 80 TMUs
Render Output Units
32 ROPs
Render Output Units
2x 32 ROPs
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Compute Units
14 CUs
Compute Units
2x 20 CUs
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900MHz
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725MHz
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FP32
2.02 TFLOPS
FP32
4.64 TFLOPS
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FP64
0.93 TFLOPS
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Pixel Fillrate
28.8 GPixel/s
Pixel Fillrate
23.2 GPixel/s
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Texture Fillrate
50.4 GTexel/s
Texture Fillrate
58 GTexel/s
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L1
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8KB/CU
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L1
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8KB/CU
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L2
512KB Shared
L2
512KB Shared
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2GB
GDDR5
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2x 1GB
GDDR5
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Bus Width
256Bit
Bus Width
256Bit
Clock
1050MHz
Transfer Rate
4.2GT/s
Bandwidth
134.4GB/s
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
128GB/s
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TDP
151W
TDP
294W
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2x DVI-I Dual-Link
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2x mini-DisplayPort 1.1
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1x HDMI 1.3
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2x DVI-I Dual-Link
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1x mini-DisplayPort 1.1
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Max Resolution
2560x1600
Max Resolution
2560x1600
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
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Variable Refresh Rate
-
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
3
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No Encoders
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No Encoders
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Model
UVD 3.0
Model
UVD 2.2
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
-
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VC-1
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AVC (H.264)
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Direct X
11
Direct 3D
11_0
Direct X
11
Direct 3D
11_0
OpenGL
4.5
OpenCL
1.2
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OpenGL
4.5
OpenCL
1.2
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Shader Model
5.0
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GFX
4
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Shader Model
5.0
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GFX
4
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1x Fan
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1x Fan
Power Connectors
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2x 6-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
2.1
PCIe Lanes
16
Slots Required
2.0
PCIe Version
2.1
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
Multi GPU Support
Supported
Type
2-way CrossFireX
Height
111 mm (4.37 in)
Width
247 mm (9.72 in)
Depth
36 mm (1.42 in)
Height
111 mm (4.37 in)
Width
311 mm (12.24 in)
Depth
37 mm (1.46 in)
Change Results