ATI Radeon HD 4730 vs ATI Radeon HD 4870 X2
ATI Radeon HD 4730
ATI Radeon HD 4870 X2
$449
|
640 Shaders
512MB GDDR5
750MHz
|
2x 800 Shaders
2GB (2x 1GB) GDDR5
750MHz
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Peak AI Performance
960 GFLOPS
FP32
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Peak AI Performance
2.4 TFLOPS
FP32
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FP32
960 GFLOPS
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FP32
2.4 TFLOPS
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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
2.0-Slots
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TDP
110W
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TDP
286W
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Power Connectors
1x 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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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%
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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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Peak AI
Performance
960 GFLOPS
FP32
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Peak AI
Performance
2.4 TFLOPS
FP32
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FP32
960 GFLOPS
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-
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FP32
2.4 TFLOPS
-
-
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FP64
190 GFLOPS
-
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FP64
480 GFLOPS
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Pixel
Fillrate
6 GPixel/s
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Pixel
Fillrate
12 GPixel/s
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Texture
Fillrate
24 GTexel/s
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Texture
Fillrate
30 GTexel/s
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Manufacturer
ATI
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Manufacturer
ATI
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Chip Designer
ATI
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Chip Designer
ATI
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Architecture
TeraScale 1
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Architecture
TeraScale 1
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Family
Radeon HD 4000
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Family
Radeon HD 4000
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Codename
Wekiva
RV770
Variant
RV770 CE
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Codename
Wekiva
RV770
Variant
RV770 XT
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Market Segment
Desktop
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Market Segment
Desktop
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Release Date
6/8/2009
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Release Date
8/12/2008
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
55nm
-
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Fabrication Node
55nm
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Die Size
256 mm²
-
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Die Size
2x 256 mm²
-
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Transistor Count
956 Million
-
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Transistor Count
2x 956 Million
-
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Transistor Density
3.73M/mm²
-
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Transistor Density
3.73M/mm²
-
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Form
PCIe Card
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Form
PCIe Card
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Shading Units
640 Shaders
-
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Shading Units
2x 800 Shaders
-
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Texture Mapping Units
32 TMUs
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Texture Mapping Units
2x 40 TMUs
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Render Output Units
8 ROPs
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Render Output Units
2x 16 ROPs
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Compute Units
8 CUs
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Compute Units
2x 10 CUs
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750MHz
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750MHz
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L1
-
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16KB/CU
-
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L1
-
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16KB/CU
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L2
256KB Shared
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L2
256KB Shared
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512MB
GDDR5
-
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2GB (2x 1GB)
GDDR5
-
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Bus Width
128Bit
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Bus Width
256Bit
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Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
57.6GB/s
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Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
115.2GB/s
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TDP
110W
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TDP
286W
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1x S-Video
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2x DVI-I Dual-Link
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1x S-Video
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2x DVI-I Dual-Link
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Max Resolution
2560x1600
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Max Resolution
2560x1600
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Max Resolution Refresh Rate
60Hz
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Max Resolution Refresh Rate
60Hz
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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
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Multi Monitor Support
2
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Multi Monitor Support
2
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-
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No Encoders
-
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No Encoders
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Model
UVD 2.0
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Model
UVD 2.0
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Codec
-
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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
10
Direct 3D
10_1
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Direct X
10
Direct 3D
10_1
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OpenGL
3.3
OpenCL
1.1
-
-
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OpenGL
3.3
OpenCL
1.1
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Shader Model
4.1
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GFX
3
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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
-
-
1x 6-Pin
-
-
-
-
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
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Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
|
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
|
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Multi GPU Support
Supported
Type
2-way CrossFireX
|
Multi GPU Support
Supported
Type
2-way CrossFireX
|
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