Radeon HD 2900 Pro vs Radeon HD 4650

Radeon HD 2900 Pro
Radeon HD 4650
320 Shaders
512MB GDDR3
600MHz
320 Shaders
512MB GDDR3
650MHz
FP32
0.38 TFLOPS
FP32
0.42 TFLOPS
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
1.0-Slots
TDP
200W
TDP
48W
Power Connectors
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1x 8-Pin
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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
ATI
Chip Designer
ATI
Chip Designer
ATI
Architecture
TeraScale 1
Architecture
TeraScale 1
Family
Radeon HD 2000
Family
Radeon HD 4000
Codename
Pele
R600
Variant
R600 Pro
Codename
Mario
RV730
Variant
RV730 Pro
Market Segment
Desktop
Market Segment
Desktop
Release Date
9/25/2007
Release Date
9/10/2008
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
80nm
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Fabrication Node
55nm
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Die Size
420 mm²
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Die Size
146 mm²
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Transistor Count
720 Million
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Transistor Count
514 Million
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Transistor Density
1.71M/mm²
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Transistor Density
3.52M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
320 Shaders
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Shading Units
320 Shaders
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Texture Mapping Units
16 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
16 ROPs
Render Output Units
8 ROPs
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Compute Units
4 CUs
Compute Units
4 CUs
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600MHz
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600MHz Base
650MHz
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FP32
0.38 TFLOPS
FP32
0.42 TFLOPS
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Pixel Fillrate
9.6 GPixel/s
Pixel Fillrate
5.2 GPixel/s
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Texture Fillrate
9.6 GTexel/s
Texture Fillrate
20.8 GTexel/s
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L1
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Unknown
L1
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16KB/CU
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L2
256KB Shared
L2
128KB Shared
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512MB
GDDR3
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512MB
GDDR3
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Bus Width
512Bit
Bus Width
128Bit
Clock
800MHz
Transfer Rate
1.6GT/s
Bandwidth
102.4GB/s
Clock
500MHz
Transfer Rate
1GT/s
Bandwidth
16GB/s
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TDP
200W
TDP
48W
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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
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 2.2
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_0
Direct X
10
Direct 3D
10_1
OpenGL
3.3
OpenCL
1.1
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OpenGL
3.3
OpenCL
1.1
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Shader Model
4.0
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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
Power Connectors
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1x 8-Pin
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Slots Required
2.0
PCIe Version
1.0
PCIe Lanes
16
Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
Multi GPU Support
Supported
Type
2-way CrossFireX
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Change Results