AMD Radeon HD 6670 vs ATI Radeon HD 4860

AMD Radeon HD 6670 $99
ATI Radeon HD 4860
480 Shaders
2GB GDDR5
800MHz
640 Shaders
1GB GDDR5
700MHz
Peak AI Performance
770 GFLOPS
FP32
Peak AI Performance
900 GFLOPS
FP32
FP32
770 GFLOPS
FP32
900 GFLOPS
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Form Factor
PCIe Card
1.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
66W
TDP
130W
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Power Connectors
2x 6-Pin
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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
AMD
Manufacturer
ATI
Chip Designer
AMD
Chip Designer
ATI
Architecture
TeraScale 2
Architecture
TeraScale 1
Family
Radeon HD 6000
Family
Radeon HD 4000
Codename
Turks
RV930
Variant
Turks XT
Codename
Spartan
RV790
Variant
RV790 GT
Market Segment
Desktop
Market Segment
Desktop
Release Date
4/19/2011
Release Date
9/9/2009
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
40nm
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Fabrication Node
55nm
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Die Size
118 mm²
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Die Size
282 mm²
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Transistor Count
716 Million
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Transistor Count
959 Million
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Transistor Density
6.07M/mm²
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Transistor Density
3.40M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
480 Shaders
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Shading Units
640 Shaders
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Texture Mapping Units
24 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
8 ROPs
Render Output Units
16 ROPs
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Compute Units
6 CUs
Compute Units
8 CUs
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800MHz
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700MHz
Peak AI Performance
770 GFLOPS
FP32
Peak AI Performance
900 GFLOPS
FP32
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FP32
770 GFLOPS
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FP32
900 GFLOPS
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FP64
180 GFLOPS
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Pixel Fillrate
6.4 GPixel/s
Pixel Fillrate
11.2 GPixel/s
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Texture Fillrate
19.2 GTexel/s
Texture Fillrate
22.4 GTexel/s
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L1
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8KB/CU
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L1
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16KB/CU
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L2
256KB Shared
L2
256KB Shared
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2GB
GDDR5
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1GB
GDDR5
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Bus Width
128Bit
Bus Width
256Bit
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
Clock
750MHz
Transfer Rate
3GT/s
Bandwidth
96GB/s
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TDP
66W
TDP
130W
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1x VGA
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1x DVI-I Dual-Link
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1x HDMI 1.3
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1x S-Video
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2x DVI-I Dual-Link
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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
2
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No Encoders
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No Encoders
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Model
UVD 3.0
Model
UVD 2.0
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
10
Direct 3D
10_1
OpenGL
4.5
OpenCL
1.2
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OpenGL
3.3
OpenCL
1.1
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Shader Model
5.0
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GFX
4
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Shader Model
4.1
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GFX
3
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1x Fan
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1x Fan
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Power Connectors
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2x 6-Pin
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Slots Required
1.0
PCIe Version
2.1
PCIe Lanes
16
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
Multi GPU Support
Supported
Type
4-way CrossFireX
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Change Comparison