Radeon HD 4580 vs Radeon HD 8470

Radeon HD 4580
Radeon HD 8470
120 Shaders
512MB GDDR3
796MHz
160 Shaders
1GB GDDR5
750MHz
FP32
0.19 TFLOPS
FP32
0.24 TFLOPS
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Form Factor
PCIe Card
1.0-Slots
Form Factor
PCIe Card
1.0-Slots
TDP
65W
TDP
35W
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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
ATI
Manufacturer
AMD
Chip Designer
ATI
Chip Designer
AMD
Architecture
TeraScale 1
Architecture
TeraScale 2
Family
Radeon HD 4000
Family
Radeon HD 8000
Codename
Wario
RV635
Variant
RV635 Pro
Codename
Caicos
RV910
Variant
Caicos XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
11/20/2011
Release Date
1/8/2013
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
55nm
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Fabrication Node
40nm
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Die Size
135 mm²
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Die Size
67 mm²
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Transistor Count
378 Million
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Transistor Count
370 Million
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Transistor Density
2.80M/mm²
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Transistor Density
5.52M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
120 Shaders
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Shading Units
160 Shaders
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Texture Mapping Units
8 TMUs
Texture Mapping Units
8 TMUs
Render Output Units
4 ROPs
Render Output Units
4 ROPs
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Compute Units
3 CUs
Compute Units
2 CUs
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796MHz
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750MHz
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FP32
0.19 TFLOPS
FP32
0.24 TFLOPS
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Pixel Fillrate
3.184 GPixel/s
Pixel Fillrate
3 GPixel/s
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Texture Fillrate
6.368 GTexel/s
Texture Fillrate
6 GTexel/s
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L1
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Unknown
L1
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8KB/CU
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L2
128KB Shared
L2
128KB Shared
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512MB
GDDR3
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1GB
GDDR5
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Bus Width
128Bit
Bus Width
64Bit
Clock
693MHz
Transfer Rate
1.4GT/s
Bandwidth
22.2GB/s
Clock
800MHz
Transfer Rate
3.2GT/s
Bandwidth
25.6GB/s
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TDP
65W
TDP
35W
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1x S-Video
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2x DVI-I Dual-Link
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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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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 1.0
Model
UVD 3.0
Codec
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VC-1
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AVC (H.264)
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Direct X
10
Direct 3D
10_1
Direct X
11
Direct 3D
11_3
OpenGL
3.3
OpenCL
1.1
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OpenGL
4.5
OpenCL
1.2
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Shader Model
4.1
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GFX
3
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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
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Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
Slots Required
1.0
PCIe Version
2.1
PCIe Lanes
16
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Change Results