ATI Radeon HD 4580 vs AMD Radeon HD 8450
ATI Radeon HD 4580
AMD Radeon HD 8450
|
120 Shaders
512MB GDDR3
796MHz
|
160 Shaders
500MB DDR3
625MHz
|
|
FP32
0.19 TFLOPS
|
FP32
0.2 TFLOPS
|
|
-
-
|
-
-
|
|
Form Factor
PCIe Card
1.0-Slots
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Form Factor
PCIe Card
1.0-Slots
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TDP
65W
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TDP
18W
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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%
|
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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 Pro
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
11/20/2011
|
Release Date
1/8/2013
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
55nm
-
|
Fabrication Node
40nm
-
|
|
Die Size
135 mm²
-
|
Die Size
67 mm²
-
|
|
Transistor Count
378 Million
-
|
Transistor Count
370 Million
-
|
|
Transistor Density
2.80M/mm²
-
|
Transistor Density
5.52M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
120 Shaders
-
|
Shading Units
160 Shaders
-
|
|
Texture Mapping Units
8 TMUs
|
Texture Mapping Units
8 TMUs
|
|
Render Output Units
4 ROPs
|
Render Output Units
4 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Compute Units
3 CUs
|
Compute Units
2 CUs
|
|
-
-
|
-
-
|
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-
-
|
-
-
|
|
-
-
-
796MHz
|
-
-
-
625MHz
|
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-
-
|
-
-
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-
-
-
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-
-
-
|
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-
-
-
|
-
-
-
|
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-
-
-
|
-
-
-
|
|
FP32
0.19 TFLOPS
|
FP32
0.2 TFLOPS
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel Fillrate
3.184 GPixel/s
|
Pixel Fillrate
2.5 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
6.368 GTexel/s
|
Texture Fillrate
5 GTexel/s
|
|
-
-
|
-
-
|
|
L1
-
-
-
Unknown
|
L1
-
-
8KB/CU
-
|
|
L2
128KB Shared
|
L2
128KB Shared
|
|
-
-
-
|
-
-
-
|
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512MB
GDDR3
-
|
500MB
DDR3
-
|
|
Bus Width
128Bit
|
Bus Width
64Bit
|
|
Clock
693MHz
Transfer Rate
1.4GT/s
Bandwidth
22.2GB/s
|
Clock
533MHz
Transfer Rate
1.1GT/s
Bandwidth
8.5GB/s
|
|
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
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TDP
65W
|
TDP
18W
|
|
-
-
|
-
-
|
|
-
1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
|
|
Max Resolution
2560x1600
|
Max Resolution
2560x1600
|
|
Max Resolution Refresh Rate
60Hz
|
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
2
|
Multi Monitor Support
2
|
|
-
-
|
-
-
|
|
No Encoders
-
|
No Encoders
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Model
UVD 1.0
|
Model
UVD 3.0
|
|
Codec
-
-
-
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
|
Direct X
10
Direct 3D
10_1
|
Direct X
11
Direct 3D
11_2
|
|
OpenGL
3.3
OpenCL
1.1
-
-
|
OpenGL
4.5
OpenCL
1.2
-
-
|
|
Shader Model
4.1
-
-
GFX
3
-
-
-
-
|
Shader Model
5.0
-
-
GFX
4
-
-
-
-
|
|
-
-
-
1x Fan
|
-
-
-
1x Fan
|
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-
-
-
-
-
-
-
-
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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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