ATI Radeon HD 4580 vs AMD Radeon HD 6450
ATI Radeon HD 4580
AMD Radeon HD 6450
$55
|
120 Shaders
512MB GDDR3
796MHz
|
160 Shaders
1GB DDR3
750MHz
|
|
Peak AI Performance
190 GFLOPS
FP32
|
Peak AI Performance
240 GFLOPS
FP32
|
|
FP32
190 GFLOPS
|
FP32
240 GFLOPS
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-
-
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-
-
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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
27W
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-
-
-
-
-
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-
-
-
-
-
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GB6 OpenCL N/A
0%
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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%
|
GB5 Metal N/A
0%
|
|
GB5 Vulkan N/A
0%
|
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
ATI
|
Manufacturer
AMD
|
|
Chip Designer
ATI
|
Chip Designer
AMD
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Architecture
TeraScale 1
|
Architecture
TeraScale 2
|
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Family
Radeon HD 4000
|
Family
Radeon HD 6000
|
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Codename
Wario
RV635
Variant
RV635 Pro
|
Codename
Caicos
RV910
Variant
Caicos
|
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Market Segment
Desktop
|
Market Segment
Desktop
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|
Release Date
11/20/2011
|
Release Date
4/7/2011
|
|
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
-
|
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Transistor Density
2.80M/mm²
-
|
Transistor Density
5.52M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
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Shading Units
120 Shaders
-
|
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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-
-
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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
3 CUs
|
Compute Units
2 CUs
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-
-
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-
-
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-
-
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-
-
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-
-
-
796MHz
|
-
-
625MHz Base
750MHz
|
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Peak AI Performance
190 GFLOPS
FP32
|
Peak AI Performance
240 GFLOPS
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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FP32
190 GFLOPS
-
-
|
FP32
240 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
3.184 GPixel/s
|
Pixel Fillrate
3 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
6.368 GTexel/s
|
Texture Fillrate
6 GTexel/s
|
|
-
-
|
-
-
|
|
L1
-
-
-
Unknown
|
L1
-
-
8KB/CU
-
|
|
L2
128KB Shared
|
L2
128KB Shared
|
|
-
-
-
|
-
-
-
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512MB
GDDR3
-
|
1GB
DDR3
-
|
|
Bus Width
128Bit
|
Bus Width
64Bit
|
|
Clock
693MHz
Transfer Rate
1.4GT/s
Bandwidth
22.2GB/s
|
Clock
800MHz
Transfer Rate
1.6GT/s
Bandwidth
12.8GB/s
|
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-
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TDP
65W
|
TDP
27W
|
|
-
-
|
-
-
|
|
-
1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
-
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-
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-
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-
-
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-
-
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-
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1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
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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
|
|
-
-
|
-
-
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No Encoders
-
|
No Encoders
-
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-
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Model
UVD 1.0
|
Model
UVD 3.0
|
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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_0
|
|
OpenGL
3.3
OpenCL
1.1
-
-
|
OpenGL
4.5
OpenCL
1.2
-
-
|
|
Shader Model
4.1
-
-
GFX
3
-
-
-
-
|
Shader Model
5.0
-
-
GFX
4
-
-
-
-
|
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-
-
-
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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