AMD Radeon HD 6870 vs ATI Radeon HD 5970
AMD Radeon HD 6870
$239
ATI Radeon HD 5970
$599
|
1120 Shaders
2GB GDDR5
900MHz
|
2x 1600 Shaders
2GB (2x 1GB) GDDR5
725MHz
|
|
Peak AI Performance
2.02 TFLOPS
FP32
|
Peak AI Performance
4.64 TFLOPS
FP32
|
|
FP32
2.02 TFLOPS
|
FP32
4.64 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
151W
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TDP
294W
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Power Connectors
2x 6-Pin
-
-
-
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Power Connectors
1x 6-Pin
1x 8-Pin
-
-
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GB6 OpenCL N/A
0%
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|
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GB6 Metal N/A
0%
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GB6 Metal N/A
0%
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GB6 Vulkan N/A
0%
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GB6 Vulkan N/A
0%
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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
AMD
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Manufacturer
ATI
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Chip Designer
AMD
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Chip Designer
ATI
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Architecture
TeraScale 2
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Architecture
TeraScale 2
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Family
Radeon HD 6000
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Family
Radeon HD 5000
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Codename
Barts
RV940
Variant
Barts XT
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Codename
Cypress
RV870
Variant
Hemlock XT
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Market Segment
Desktop
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Market Segment
Desktop
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Release Date
10/22/2010
|
Release Date
11/18/2009
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|
Foundry
TSMC
-
|
Foundry
TSMC
-
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Fabrication Node
40nm
-
|
Fabrication Node
40nm
-
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|
Die Size
255 mm²
-
|
Die Size
2x 334 mm²
-
|
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Transistor Count
1.7 Billion
-
|
Transistor Count
2x 2.2 Billion
-
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Transistor Density
6.67M/mm²
-
|
Transistor Density
6.45M/mm²
-
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Form
PCIe Card
|
Form
PCIe Card
|
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Shading Units
1120 Shaders
-
|
Shading Units
2x 1600 Shaders
-
|
|
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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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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Compute Units
14 CUs
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Compute Units
2x 20 CUs
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-
-
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-
-
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-
-
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-
-
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-
-
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900MHz
|
-
-
-
725MHz
|
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Peak AI Performance
2.02 TFLOPS
FP32
|
Peak AI Performance
4.64 TFLOPS
FP32
|
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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
2.02 TFLOPS
-
-
|
FP32
4.64 TFLOPS
-
-
|
|
-
-
-
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FP64
930 GFLOPS
-
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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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-
-
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Pixel Fillrate
28.8 GPixel/s
|
Pixel Fillrate
23.2 GPixel/s
|
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-
-
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-
-
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Texture Fillrate
50.4 GTexel/s
|
Texture Fillrate
58 GTexel/s
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-
-
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-
-
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L1
-
-
8KB/CU
-
|
L1
-
-
8KB/CU
-
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L2
512KB Shared
|
L2
512KB Shared
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-
-
-
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-
-
-
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2GB
GDDR5
-
|
2GB (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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-
-
-
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TDP
151W
|
TDP
294W
|
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-
-
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-
-
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-
-
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
2x mini-DisplayPort 1.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
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-
-
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
1x mini-DisplayPort 1.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Max Resolution
2560x1600
|
Max Resolution
2560x1600
|
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Max Resolution Refresh Rate
60Hz
|
Max Resolution Refresh Rate
60Hz
|
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Variable Refresh Rate
-
-
-
|
Variable Refresh Rate
-
-
-
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Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
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Multi Monitor Support
2
|
Multi Monitor Support
3
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-
-
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-
-
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No Encoders
-
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No Encoders
-
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-
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-
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Model
UVD 3.0
|
Model
UVD 2.2
|
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Codec
-
-
-
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Direct X
11
Direct 3D
11_0
|
Direct X
11
Direct 3D
11_0
|
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OpenGL
4.5
OpenCL
1.2
-
-
|
OpenGL
4.5
OpenCL
1.2
-
-
|
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Shader Model
5.0
-
-
GFX
4
-
-
-
-
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Shader Model
5.0
-
-
GFX
4
-
-
-
-
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-
-
-
1x Fan
|
-
-
-
1x Fan
|
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Power Connectors
-
-
2x 6-Pin
-
-
-
-
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
|
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)
|
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