Radeon HD 3850 vs Radeon HD 2900 XT
Radeon HD 3850
Radeon HD 2900 XT
|
320 Shaders
512MB GDDR4
668MHz
|
320 Shaders
1GB GDDR4
743MHz
|
|
FP32
0.43 TFLOPS
|
FP32
0.48 TFLOPS
|
|
-
-
|
-
-
|
|
Form Factor
PCIe Card
1.0-Slots
|
Form Factor
PCIe Card
2.0-Slots
|
|
TDP
75W
|
TDP
215W
|
|
Power Connectors
1x 6-Pin
-
-
-
|
Power Connectors
1x 6-Pin
1x 8-Pin
-
-
|
|
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 3000
|
Family
Radeon HD 2000
|
|
Codename
Boom
RV670
Variant
RV670 Pro
|
Codename
Pele
R600
Variant
R600 XT
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
11/19/2007
|
Release Date
5/14/2007
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
55nm
-
|
Fabrication Node
80nm
-
|
|
Die Size
192 mm²
-
|
Die Size
420 mm²
-
|
|
Transistor Count
666 Million
-
|
Transistor Count
720 Million
-
|
|
Transistor Density
3.47M/mm²
-
|
Transistor Density
1.71M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
320 Shaders
-
|
Shading Units
320 Shaders
-
|
|
Texture Mapping Units
16 TMUs
|
Texture Mapping Units
16 TMUs
|
|
Render Output Units
16 ROPs
|
Render Output Units
16 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Compute Units
4 CUs
|
Compute Units
4 CUs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
-
668MHz
|
-
-
-
743MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
FP32
0.43 TFLOPS
|
FP32
0.48 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.09 TFLOPS
-
|
-
-
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
10.688 GPixel/s
|
Pixel Fillrate
11.888 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
10.688 GTexel/s
|
Texture Fillrate
11.888 GTexel/s
|
|
-
-
|
-
-
|
|
L1
-
-
-
Unknown
|
L1
-
-
-
Unknown
|
|
L2
256KB Shared
|
L2
256KB Shared
|
|
-
-
-
|
-
-
-
|
|
512MB
GDDR4
-
|
1GB
GDDR4
-
|
|
Bus Width
256Bit
|
Bus Width
512Bit
|
|
Clock
900MHz
Transfer Rate
1.8GT/s
Bandwidth
57.6GB/s
|
Clock
1000MHz
Transfer Rate
2GT/s
Bandwidth
128GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
75W
|
TDP
215W
|
|
-
-
|
-
-
|
|
-
1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
-
1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
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
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
Model
UVD 1.0
|
Model
UVD 1.0
|
|
Codec
-
-
-
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
Codec
-
-
-
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
|
Direct X
10
Direct 3D
10_1
|
Direct X
10
Direct 3D
10_0
|
|
OpenGL
3.3
OpenCL
1.1
-
-
|
OpenGL
3.3
OpenCL
1.1
-
-
|
|
Shader Model
4.1
-
-
GFX
3
-
-
-
-
|
Shader Model
4.0
-
-
GFX
3
-
-
-
-
|
|
-
-
-
1x Fan
|
-
-
-
1x Fan
|
|
Power Connectors
-
-
1x 6-Pin
-
-
-
-
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
|
Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
|
Slots Required
2.0
PCIe Version
1.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
4-way CrossFireX
|
Multi GPU Support
Supported
Type
4-way CrossFireX
|
|
-
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-
-
-
-
|
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-
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